Beginner Vanilla Javascript Project Tutorial

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In this episode we are going to cover a small project of the full Creative Javascript Course, a todo list in vanilla js.
We are going to put together all the fundamental javascript techniques including local storage.
Check out the javascript course in the link above to create more complex javascript projects and understand complex topics.
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#programming #javascript

[@briandesign]

Dope! Already got in the course and built a few of the projects

[@jamesfowler6343]

How are you finding the course ?

[@user-vk4pk7pd4v]

The link is in the video's description.

[@mohitgupta442]

this course is not available to free.

[@ricardosilva-bp7un]

@@mohitgupta442 No

[@hammadhassanhashmi]

@@mohitgupta442 Bro can you share this course with me?

[@developedbyed]

Thanks for everyone who joined The Creative Javascript Course!

[@giiipfel]

Thank you for making this courses, you are the best!

[@journey_to_100]

Thanks

[@dadandahmanwahidi4814]

Luar biasa

[@thorwd]

I'm really enjoying your course, even for an intermediate JS developer, I did learn new things 😃

[@nocode659]

PLEASE UPLOAD COURSE IN UDEMY, MANY WILL ENROLL PLS

[@arwahsapi]

Pandemic ends. Everyone turns programmer.

[@damyandimitrov611]

if (turns === 'knowing much more than before') { jobAfterCovid = true; }

[@tomisinergy4963]

Dont judgement by the comments, likes and wives on youtube

[@patriceammah1117]

Damyan Dimitrov hahahahaha

[@amongdoomers9464]

🤣🤣🤣Possibly

[@howtocutatreewithaherring82]

Do you think it's a joke? Be prepared for when this COVID ends the competition in this field is getting barbaric!

[@cansatc5873]

If you're getting the cannot read/set display or contains error for the filterTodo function after the 54th minute, you can change the code as follows: function filterTodo(e) { const todos = todoList.childNodes; todos.forEach(function (todo) { const mStyle = todo.style; if(mStyle != undefined && mStyle != null){ switch (e.target.value) { case "all": mStyle.display = "flex"; break; case "completed": if (todo.classList.contains('completed')) { mStyle.display = 'flex'; } else { mStyle.display = "none"; } break; case "uncompleted": if (todo.classList.contains('completed')){ mStyle.display = 'none'; } else{ mStyle.display = "flex"; } break; } } }) } Although I struggled for a long time, I could not solve this problem and my developer friend offered this solution. Thank you again here.

[@bearchemist2286]

Thank you for this so much. Can you explain why this fixes the issue? To me this just looks like a check to see if todo.style is undefined and if not, continues to the switch.

[@ponderingPenguin02]

Thank you for saving me loads of head ache :)

[@gamalabdu8374]

Thank you! I spent an hour trying to figure out why my code was exactly what he typed but didn't work. Do you know why this was an issue? I didn't have an issue until then.

[@zakur0hako]

thanks a lot. now somebody needs to find the reason why it works like this

[@MuhammadJaved-bb4cx]

Thanks! your method works.

[@tonybalde4298]

The fact that he makes mistakes, identifies them and explains how to solve them, makes this video more incredible!

[@sabertoothwallaby2937]

Exclamation points

[@naidenmatyas925]

man, you're great!even if you sayd that you're not gonna give the course for free you're still posting some of you're hard work for free!keep the hard work

[@kachisideo6001]

So true

[@primeshmohanty7701]

I was literally looking for something like this on your channel. I love you so much!

[@domenicocucinotta2720]

Thanks Ed for your time and for this fantastic tutorial! I have learned tons! The last part (local storage bit) was quite tricky for me as beginner so I had to go through it multiple times! Cheers!

[@michaelvigato3228]

It would be very cool to see a follow up to this tutorial in which you show how to save stuff on firebase, instead of local storage :)

[@LuBre]

"That's not a fart, that's the chair" *Subscribed*

[@elyordoniyor4061]

"Ok"

[@shawnbeans7389]

hahha

[@drakecoleman9364]

same lmao

[@CarlosGoncalves-mb9cy]

Amazing tutorial, thanks man the way you explain makes everything so clear.

[@BoisNation]

Exactly what I have been looking for. I just started learning some JavaScript after finishing HTML and CSS. This project was perfectly fit for me and it was very nice of you to post some of your hardwork for free on KZbin. Keep it up!

[@techcanyon411]

It is a blessing and a thing of joy to meets someone who want you to grow.

[@ghoulishwargamer]

Another way you could save the items into local storage is saving them as objects, along with the status i.e, {'text': 'todoText', 'status': 'complete'}. With some additional work you can then save the state of each todo item and set the necessary styling when refreshing the page. Great tutorial!

[@Anderzon1994]

Hey Ed ! Thanks for sharing your knowledge man. I'm learning a lot of things with your videos. Your explanations are amazing and I have fun watching your videos! Most of the JS that I know it's because of you bro I love you man, thanks for everything.

[@joshterryplays]

This was great. Thank you. I went through the whole thing with you on my own editor. Really appreciate it.

[@michaelhajny783]

I appreciate your attention to make everything clear enough and also that you teach us something about what are you actually do console and vs code. I realy like contents that you produce. It is a clear understandable and also funny. THANK YOU a lot.

[@SmeSSS]

Thank you for this small little project Ed. Much appreciated!

[@tshaylatte9502]

I like the fact you make errors and show how to search for them 👍🏾

[@RicardoSilvaTripcall]

Amazing project and Channel, Congrats!!! I've been long years away from the front end and Java Script an this was an amazing refresh. Going to explore and study the code more thorough now.

[@nadinandfamily6201]

Thanks so much for such great project. It took me several days to understand each part of it, to make a lot of notes and even to add some new features!!! You are going a great job! Will be waiting new projects

[@JohnyFretka]

When selecting 'all', 'completed' or 'uncompleted' I found that click event in filterOption eventlistener works only in Firefox for me. To make it work in Chrome as well I needed to put 'change' instead of 'click'.

[@JordanKimsey]

Thank you so much! I was going crazy trying to figure out why it was behaving like this.

[@diegofernandez6082]

Thank you man, i was wondering if it was just me lol

[@khaledlakehal5450]

😳Thank you

[@chonka_poodge]

thanks worked for me!!

[@nefeles5615]

Thank you so so much!!! I spent a whole hour checking the code over and over to see what was wrong.

[@sambathadev]

Yeeeeeeeee another one from my fav developer.... Love from the smallest country in West Africa, The Gambia

[@kramyshan8121]

Excellent work here, you rock! The local storage part is the best on the internet so far. Keep it up and thank you very much!

[@fhkodama]

Ed, thank you very much! My first project. It was incredible to organize my thoughts on how to use HTML, CSS, and JS, all together! :) Perfect!

[@tanvirashraf728]

Beother Ed i was confused about whether i am gorgeous or not , but you have cleared my confusion....

[@alisher8289]

Oh damm really

[@duplicpapers8753]

Same

[@alexlegoG]

Extraordinary tutorial! This was incredibly helpful! Thank you very much for everything!

[@_aguskhaer]

In the beginning of this video, i've got entertained while i'm super dizzy to start learning javascript. Thanks for this entertaining + educating video, you're awesome!

[@ShadowHeroo]

I already know some JavaScript, but I bought this course to skill myself up. So far this course is awesome and worth the money. You nice, keep going my gorgeous teacher :))))))

[@mdshahab8507]

JS code is not wroking in my sublime 3.2.2, please help

[@AbbasAli-ep3kb]

bro can you plz give me this course that you bought I'll be thankful for this favor

[@vietanhhoang2642]

bạn có thể chia sẻ cho tôi được không

[@duplicpapers8753]

@@mdshahab8507 sublime is better for stuff like HTML and css try VS code :D

[@sergiorejtman]

Hey guys, there is a small LOGIC GAP here, if you set the filter to "uncompleted" and check a new item, that item will not hide immediately, as it should. The fix is simple: Inside function filterTodo(), instead of doing switch(e.target.value) you should do switch(filterOption.value). That will allow function filterTodo() to be called anytime, not only inside the 'click' event. Then you just add filterTodo(); as the last line inside the block "if (item.classList[0] === 'complete-btn')" inside function deleteCheck(). That will call funtion filterTodo() right after the item is checked, updating the screen!

[@GamestarsBulgaria]

doesnt work :(

[@zyx138]

thank you so much!!

[@anjanipriyanka7575]

😇thanks

[@utsavkashichhwa]

There is still another problem. When you set filter to 'complete' then add a new item, the item will not hide immediately. The first thing is to modify the filterTodo() function, like mentioned above, so it can be used without the event argument. Then make sure to call the filter funtion when you change the filter, add a new todo, or change the state of a todo by adding event listeners to the relevent elements: [filterOption, todoButton, todoList].forEach((element) => element.addEventListener('click', filterTodos));.

[@danielmbirch]

This works great, thank you. The only issue I'm having is the select field only actions the second time you click it. Click once to get the drop down, select an item (nothing happens yet) but click on the select element again and the selection you previously made actions. Anyone have any ideas? My code is the same as the tutorial, checked many times over, I'm thinking since this tutorial was made 2+ years ago, there have been browser or JS changes which is causing this??

[@flatlinejimbob]

Currently studying web development and my local government institute of learning, this has been way more engaging and easy to follow than anything they have thrown at us this year. Thank you! I have signed up for the course :D

[@pweezy001]

Thank you soooooo much for this video Ed, I've been struggling with this code for the past hour! You're a life saver!

[@yakimura96]

I bought the course, but I am very proud of you sharing this project, knowledge for everyone.

[@jamesfowler6343]

Tony can I ask how you are finding the course ?

[@yakimura96]

@@jamesfowler6343 I haven't finished the course yet

[@umeraftab6494]

can you share project :( i cant buy man :( very poor but love to learn if you can i will be glad :( [e-mail]

[@journey_to_100]

Was going to start TODO list before 7hours .. but i saw your new video is up and luckily it was todo list.. i am gonna start right now.. i love your sense of humour 😂😂.. keep going broo.. ❤ From INDIA

[@00el04]

these are the type of tutorial i LOVE! thanks so much

[@shafnisha1171]

Loved this explanation, thankyou ed!

[@mohamedmidou3494]

Thank you so much this Tutorial really helped me practicing my JS knowledge ♥

[@sowmyarr5705]

Where you learnt js

[@BasedGob]

In the filtering part, for some reason my todoList.childNodes contained an extra "text" node in addition to the various divs representing todo items. This was causing it to break so I added an additional if statement to filter those out: todos.forEach(function(todo) { if (todo.nodeType == Node.ELEMENT_NODE) { switch(e.target.value) { ...

[@klaudiaa483]

I had the same problem. Now that I've added the line of code you've written it works. Thanks for sharing! :)

[@curtishenley3538]

Thank you!!! I was debugging for soooo long.

[@frmcf]

Thank you! I had the same problem, and almost got to the same solution as you, I was just missing the '.nodeType'!!!

[@technonessteam7511]

Your way of teaching is so relaxed and really good. Keep up the good work

[@hillelcohen3878]

Awesome! Really got an incredible amount of knowledge in a short time. Thanks!

[@mikebrown8239]

Thank you so much for this. I appreciate you giving some of your paid courses for free. Keep up the good work! You're AWESOME!!!

[@alicemorgan9424]

For those who can't do the filter function at 53:34 Here is the code ```HTML Code DS Todo List All Completed Uncompleted ```JS Code filterOption.addEventListener('click', filterTodo); function filterTodo(e) { const todos = todoList.childNodes; todos.forEach(function(todo) { if (todo.nodeType == Node.ELEMENT_NODE) { switch(e.target.value) { case "all": todo.style.display = "flex"; break; case "completed": if (todo.classList.contains('completed')) { todo.style.display = 'flex'; } else { todo.style.display = "none"; } break; case "uncompleted": if (todo.classList.contains('completed')){ todo.style.display = 'none'; } else{ todo.style.display = "flex"; } break; } } }) } Possible errors on your side: 1) The space in can cause error. Remove the space between the and 2) For filterOption.addEventListener('click', filterTodo); some said changing from 'click' to 'input' or 'change' helps. Click works just fine for me tho. 3) Add extra code to your function filterTodo(e), add this : if (todo.nodeType == Node.ELEMENT_NODE) { full code is as shown as above. If above method does not work, could be just a type error. Try copy and paste my code and see if it works. Hope this helps. Happy Coding guys =)

[@rawfreedom]

you are a life saver Alice! this is literally my first js project. if you may, would you explain why adding the line if (todo.nodeType == Node.ELEMENT_NODE) makes the difference? it was not working for me without this line and the console said there was a type error

[@developpement8000]

thanks

[@scottonanski4173]

Was totally the space in the that I had. I wouldn't been able to catch that in a million years.

[@yr4753]

Your possible errors point 2) is a great help i just change 'click' to 'input' and now my list is working fine. Thx

[@SerhiiParkhomenkoFingerstyle]

Thank you! You saved my nerves! In my case it was space between tags. But why??? I don't get it...

[@GoodBoy-yu2rk]

it feels like a fun journey listening to your lesson, keep it up!

[@AlbertoRivas13]

Thanks a lot for making this project man, it was really useful

[@GaLaVrAmOv]

Hey, awesome video, But I also wanna talk about a little problem that I saw. At 1:10:33 you're deleting a "todo" element by looking for it by the element text, and if you'd have the same element twice then it's gonna remove the very first element. My solution for that is to delete a text from the todos array by the index of the element, which is supposed to be with the same index in the todos array, just like that: const todoIndex = Array.from(todosList.childNodes).indexOf(todo); todos.splice(todoIndex, 1); And now, even if you had the same text in the todos list, it would delete the specific todo element that you have clicked on.

[@markokafor7432]

or simply add an id to each todo an then use the filter() to remove it would have been easier

[@spectruum]

Or realistically why would you add the same task twice

[@GaLaVrAmOv]

I don't know, maybe you'd want to go to the gym twice a day

[@stevieholland3579]

@@markokafor7432 This makes sense to me. Curious, would I also use this to somehow get it to save the line through when I refresh, or is that harder to do? Sorry if this sounds dumb. I don't have much experience

[@markokafor7432]

@@stevieholland3579 the only way to save it so it doesn’t disappear when you refresh is to either save it to local storage or implement a database. If you are not saving it anywhere then it’ll disappear when you refresh

[@sunnydivino]

Thank you so much, Ed! I learned a lot from this video. I got stuck by the minute 48 when toggling the completed to-dos, for a reason the children in the nod list were undefined. After hours of checking my code line by line, I solved it by replacing my HTML body with the one from your repo. Although it was the very same code, except for one space between the footer and the script tag. Didn't know what could have been wrong with mine. Great video!!! I enjoyed it so much.

[@thecoderguy2566]

yes , right , I too got there stuck , and after formatting it , the code worked perfectly fine , I had to console log again and again and got white space as well , but it is not clearly mention that why this issue happened , for anyone facing this problem can select all and press shift + alt + f , in short : " ctrl + a " and then " shift + alt + f " do check if it works

[@atifaslam2965]

gorgeous brother, you taught me well . i came for the local storage part but after watching full video.. i learned many new concepts. thnx

[@sejaldahake2745]

Thank you so much Dev :)) You were so good at explaining every detail. Had a great time doing this one. :) Love

[@gookanga]

Ed and De Gea look so much alike, especially when he put those glasses on.

[@mattyxow]

Something: **doesn't work** Him: **visible panic** Something: **doesn't work** Me: ah shit, here we go again

[@fernandocorenstein6531]

Hi Ed, I know your channel from a few months back when I started learning Python. Just purchased your courses for HTML,CSS & JS. Thank you for the great content!

[@sibusisosiyabongandaba698]

This was hello of a session, did every line with you. 🙂 Great stuff, keep it up

[@maayanzakuta5328]

If you're getting the cannot read/set display or contains error for the filterTodo function after the 54th minute it's bc you have to check if the starting "ul" and the closing "ul" in line 30 of the index IS IN THE SAME LINE and that the closing ul is not a line below bc if it is it'll take "text" as first child and mess up the childNodes which is why u get this error.

[@tanmay6207]

was stuck at this! :') Thanks a lot

[@diamondsinyoureyes]

omg thank youuuu. I was up to the filter option and nothing was changing when changing the select dropdown. I went through the video again and again! adding into my html made everything work properly. Never would have found this without your comment!

[@aviraljain8785]

great eye u got. Thanks !

[@nitishroat]

2:47 START

[@Agustin-jo8mv]

hahahahaha. I was like for fuck sakes, when is the video starting. lolololollolololololol. It's a free lesson though no complaints. Just funny though. haha

[@megakyle83]

Great explaining, very comprehensive. Excellent work.

[@noquarter1983]

This was a fun project and a great addition for a portfolio item! Thanks

[@serousetrick]

Great tutorial Ed, it was fun doing this project. The only problem that I have is when I delete todo, instead of it there will be blank space. For example, if I want to delete only the first "todo" by clicking on the trash button, after animation on its position there is an empty row and the second "todo" won't climb up. Any help with this?

[@parsa6043]

I'll wear some shades next time, when I build a todo list for the 1000th time

[@namoudnormand3048]

😂😂😂😂😂😂😂😂

[@modestpelicanprogramming6370]

boomers be like HAHAHHAKHSAGsipdgu:owefinhwnjl;

[@duplicpapers8753]

@@modestpelicanprogramming6370 you: 👦

[@technonessteam7511]

Thank you so much for creating this tutorial. You have done an amazing job. Really impressive. Please bring more Vanilla JavaScript projects with such great detailing. Really thank you. stay blessed

[@jonathankibet9750]

its amazing how you can squeeze so much content into an hour of video. Nice stuff man .Found my GRIT again!!

[@nehakumar9889]

Thank you so much Ed Sir ❤ I actually don't have enough pocket money left and due to ny degree expenses and other stuffs.My parents won't be able to give me extra bucks for online courses. Thanksss a lott for putting this online :) for free.... I wish majority of the learners enroll into this course because you're awesome professor Ed :)

[@MohamedAli-gs9ug]

Thus application is very hard

[@alivakili2770]

Thank you for the amazing tutorial. I appreciate it. just one concern! after loading again the page, the items which checked or completed before would not be checked or completed anymore. how to fix it?

[@yltfy]

Basically, it's not sufficient to store only the todo content to the local storage. You'll also have to store a boolean indicating whether it is completed, and then render the style accordingly. Instead of storing todos = ["learn javascript", "get up early", "hello"], you need to store something like todos = [{content: "Learn javascript", completed: false}, {content: "get up early", completed: true}, {content: "hello", completed: true}].

[@emarroqu100]

To DevEd: Thank you, mon ami. Your tutorials are awesome. Learning a lot from you. JS is new to me as I come from legacy/mainframe development. To: Byron Jones: Thank you, brother. Your alternate approach to solve ["cant read property contains of undefined"] works well. I spent a couple of hours troubleshooting on my own w/o success.

[@doniyorabduvokhidov1706]

Tons of thanks , I just intended to learn Vanilla JS but I also learnt CSS, it was incredible

[@muhammadans7071]

i am facing problem in filtration and also display property can't set todo.style.display = "flex"; Uncaught TypeError: Cannot set property 'display' of undefined

[@arpantimsina1805]

for the people that are getting the error of ["cant read property contains of undefined"] you have to check if you left space in the tag and because of that when you get the list of nodes you always get a "Text" node with no class and that causes the problem.

[@andyjohn907]

@@arpantimsina1805 thanks was having same problem

[@youssefbaaziz3673]

@@arpantimsina1805 thankssssss

[@rain-techstudio2567]

@@arpantimsina1805 wow you Rock!

[@imPriyankCoder]

thank you ed for your kindness. Could please add this type of course in react or angular there is lot of demand for those programming language. Would you be doing same kind of course please paid ofc i meant

[@pvd4170]

Thank you for a great tutorial! Decided to learn all html, css and js stuff by doing, and you are helping a lot!!!!🔥🔥🔥

[@popescugeorgebogdan2506]

Thanks man. Great work. Love your style.

[@flaviusmiron4041]

"EH, why u do this to me" lmaoo 49:12

[@mohamadnagiebrahim]

thanks for the effort! the event.preventdefault(); does not work, and the page keeps on refreshing, any help please ?

[@finchaser]

i have the same problem

[@kimlargo]

Very helpful tutorial. Thanks Ed!

[@liammcbride4956]

Great tutorial and very easy to follow! Thank you!

[@trystandbannon]

For some reason my todos filter doesnt update until i click on it again, how do I make it happen right when i click the option i choose?

[@0rdsec]

just had this same issue. in the event listener for filterOption, use 'input' instead of 'click'

[@mimkii8369]

@@0rdsec Thanks for the solution! I had the same issue..why was that happening?

[@0rdsec]

@@mimkii8369 i'm no expert, but i think it's because a click listener doesn't provide the behaviour we need, which is displaying certain todos based on what we select in the dropdown, upon selection. the click listener only cares about whether something's been clicked, whereas we need things to filter when the selected option in the dropdown CHANGES. dropdowns seem like a dark art :)

[@flo_dev]

You rock !

[@aakashkharche9429]

I am getting 4 in nodelist even if 3 are added and first is text and due to this getting error.Can u help

[@katianddav]

Could you put readyproject to download ? I have some problems...

[@vaniad555]

yes, copy & paste at the end messed up my entire js , wish I had the full page of code to see where I missed a dot, hard to read the lines after hours of following that handsome guy...:)

[@pinderant]

Thank you very much for this project. Definitely learned a lot of concepts. Thinkin will modify this to some sort of inventory reorder checklist or something like that

[@edwandersonluizpereira764]

Sensational, I learned a lot from this video thank you and congratulations for the didactic and project presented! it was very productive for me, thanks Ed

[@joshuachisunka5887]

Thanks for the course Dev Ed, I love your tutorial videos. They are good for practice and the results are awesome. I had a problem with making the list appear when I click the add button. My page keeps refreshing each time I click the add list button. Where could I have gone wrong?

[@severussin]

Having a similar issue with the javascript elements on this tutorial.

[@hariprasad467]

Use prevent default method

[@alexandros6453]

Great tutorial Ed! I faced an error in the filter function and don't know exactly what went wrong :( Where can i find the source code to check the issue? Thanks again!

[@HermanRas]

anyone completed the project ? please share Code :)

[@harshmellow3549]

@@HermanRas from a comment above you : for the people that are getting the error of ["cant read property contains of undefined"] you have to check if you left space in the tag and because of that when you get the list of nodes you always get a "Text" node with no class and that causes the problem.

[@alexandros6453]

@@harshmellow3549 that was the problem! you are great:)

[@rayhanmahmud6589]

@@harshmellow3549 Thank you so much! This problem was driving me crazy!

[@victorramirez5605]

@@harshmellow3549 wow such a small detail was creating a huge problem. thanks.

[@VHCreator]

56:44 this guy turns off caps lock with a voice command, pretty cool imo. Just finished this video, amazing. Im coming from Java and need to do a project in web dev course im enrolled in collage. You are providing very helpful videos, thank you.

[@Winterstorm858]

Nice one matey looking forward to doing the course

[@utkarshgupta3209]

23:44 my program is not working, nothing is happening when I click the 'plus' sign. Please help.

[@guithegood87]

I have the same issue, when cliecked the chrome console warns about a "Uncaught TypeError: todo.classList.toogle is not a function at HTMLUListElement.deleteCheck".

[@carlosantoniomarroquin5520]

@@guithegood87 It's not toogle is toggle, you have two o's instead of two g's . That's why it says that is not a function.

[@00el04]

have you fixed the problem?

[@severussin]

@@00el04 My JS doesn't appear to run on my page after literally copying and pasting his JS code into my editor. Any ideas?

[@elidayjuma]

I have always been waiting for this moment... COMMENT NUMBER ONE

[@aroshm1682]

Ed!! my man!! this is awesome. thank you so so much. I can't event say how thankful I am. I learned a lot just from this video.

[@nigelpallatt]

Love this follow along with thing, everything I have known for years but it feels fresh somehow ...

[@minstreet_studio6265]

2:08 IS THE REASON WHY THIS VIDEO IS 1 HOUR LONG😂😂😂😂😂

[@sakshilalchandani7944]

23:41 why can't I see the li's on the page, when I hit submit button

[@TheShowTimeElites]

im having the same problem

[@ThomasWilliamson]

I am also having the same problem, anyone figured it out?

[@notonlymusicmixes181]

Same here. My page refreshes when I click the button, but nothing else happens. I also added event.preventDefault(); .....feels bad

[@joshgordon7299]

i fixed my problem i figured out i had mine todoDiv.classList() instead of todoDiv.classList.add('todo-item')

[@ericbeard7007]

Your quickly becoming my top 3 watched coding channels!

[@johnatteo822]

Ed you are my favorite person. I'm buying your Javascript course so I can do more projects. Thank-you for sharing your knowledge to help others like me strive! 👍

[@MinecraftVinesFHAM]

Is anyone having trouble with filtering the completed/uncompleted tasks? I'm copying the code straight from him and it doesn't seem to work for me. I noticed this error I'm receiving in the console.log whenever I click the dropdown box. Uncaught TypeError: Cannot set property 'display' of undefined at app.js:77 at NodeList.forEach () at HTMLSelectElement.filterToDo (app.js:72) Would love some help if possible! Thank you

[@SmeSSS]

I have the same problem. I think the error occurs, because if you check what console.log(todos) does after the "const todos = todoList.childnodes;" line, then you'll see, that we have an unneccesary element in the NodeList. Even though you add 0, 1, 2 or 3.... items, there will be always 1 more in the NodeList, because the first one will be a 'text' element, like this: NodeList(3) [text, div.todo, div.todo] I'm not sure why does it gets added. It has a wholeText: "↵↵ ". I'd also appreciate some insight if someone has. :)

[@hwangdoo5515]

me too, I need to some helps @@

[@hwangdoo5515]

@@SmeSSS I think i can fix it, try remove all spaces in ul in html. code: ""

[@SmeSSS]

@@hwangdoo5515 You are absolutely spot on. Nice thinking, good job! =]

[@ThatGuyDownInThe]

@@hwangdoo5515 yo HOW did you figure that out??

[@vijethrevankar7937]

When filterind, i get this error. Can help me out? TypeError: todo.classList is undefined TypeError: todo.style is undefined

[@hemantjain8777]

check if you have left blank space between the ul tag () . Get rid of the space and your problem will be solved, hopefully

[@vijethrevankar7937]

@@hemantjain8777 yeah that was the issue

[@kinglebron5437]

@@hemantjain8777 wow it fixed it, may i ask why is this the reason of the error?

[@hemantjain8777]

@@kinglebron5437 when we get the list of the nodes, the empty text is returned without any class. This gives rise to the error.

[@m.rohith1821]

If you don't mind can you please share the code . I am not able to get the part at 23:42 . I am not able to find the mistake.

[@deepfields8215]

Thank you so much for sharing !!! You're a true master.

[@dipokchandra264]

I just found a brand new tutorial in skillshare about the "Complete and Creative Javascript Course." That's the great tutorial I have seen ever. I am in class 23. Thank you so much, man! You are great.

[@wayupthep0unds]

For anyone getting the 'TypeError: Cannot read properties of undefined' error when trying to get the 'completed' filter to work, change: function filterTodo(e) { const todos = todoList.childNodes; todos.forEach(function (todo) { with: function filterTodo(e) { const todos = [...todoList.children]; todos.forEach(function (todo) { childNodes returns a collection of - as it sounds like - child 'nodes'. Some of these nodes may not be elements, but text nodes - and text nodes have no classList property. Use .children instead, which will retrieve only child 'elements'.

[@trudeauokech2234]

Thank you so much for this! It is really helpful

[@Tc-hs8rp]

What do the "..." do?

[@adept9162]

This hasnt worked for me.

[@richochet]

Thanks, but this didn't work for me, same error message "Uncaught TypeError: todo.children is undefined"

[@pradeepkumarreddykondreddy7048]

Anybody interested in implementing how to persist completed and uncompleted list to local storage, then you can check my repository github.com/kpradeepkumarreddy/todo-list At the end of the video Dev Ed said it is difficult to implement. But it is not so difficult. Instead of storing the item text alone to local storage, i'm storing the following object, where status is completed/uncompleted. class TODOItem { constructor(text, status) { this.text = text; this.status = status; } }

[@adao5308]

Checking this out. Thanks!

[@harshwebdeveloper]

thanks sir this was helful i was facing some problems

[@theeredqueen]

I loved this tutorial ! If youre looking for a better looking down arrow for the select, try adding padding:0.7rem to the .select::after class :D

[@Amar11115]

I don't know how I should thank you. Really enjoyed the tutorial. Learned a lot. Of course there are 1-2 things I haven't comprehend properly but I will clear them up. Just want to say, you are awesome!

[@ronnykorneli]

Hey guys! Im having a bug, maybe you could help. When I press one of the options in the select dropdown menu, the todo list does not update. Only when I press the select menu again it updates..... ....UPDATE: I just cloned the repo from Dev ED, and his code has the same bug. It could have something to do with my Browser. I am running Chrome.... The problem seem to be that. the filterToDo function does not fire when i press the options in the drop down menu, only when I press the select element does the function fire UPDATE: Found the solution: use the 'change' eventlistener, instead of 'click' on the filterOption function :-)

[@tanmay6207]

thank you so much for this! :)

[@TipsyRiver]

Had some trouble with an error that said "Uncaught TypeError: Cannot read property 'addEventListener' of null" and none of the google/comment fixes did it for me. So, for anyone out therre with the same issue here's my fix: 1. Go to index.html and add ithe "id" property to your main divs/buttons/lists. Set them equal to their class. 2. Then go to the top of your app.js file. Use getElementById instead of querySelector when creating the todoInput/todoButton/etc variables. 3. It should be working now. Dunno if it's an issue with JJ, chrome or something else, but querying for IDs is the only solution that worked for me after hours of trying things and searching SO.

[@captainpeen9880]

i dont understand why is this happening

[@srivatsajoshi]

It happened to me as well. That s because i forgot to add "dot" in querySelector('.todo-input'); . May be the same thing happened to you.

[@severussin]

@@srivatsajoshi I have not forgotten the dot but by app.js file doesn't work even though I've ensured its identical to whats in the video, any pointers?

[@andreguimaraes9347]

You just saved me a lot of headache. Thank you so much!

[@hernang.naguibin6904]

Finally got interest in JS, Thanks a lot Ed.

[@sharriceowens913]

thank you for helping me with my first javascript project around the 1 hour mark it got a lil difficult to understand but i think if i do a lil research ill understand exactly what was done and why