Dart Optional Default Parameters in Function. Dart Flutter Tutorial #6.6

[@subhanshusahani9649]

And there we go. Perfect!!

[@blueapple9135]

Thanks you so much. The way you explain makes it easy for us to understand.

[@SammarpanDasguptaOfficial]

Thanks for the best dart tutorial I have ever seen...Thanks for that amazing course...

[@avi8034]

The best tutorial in youtube . Thank you sir !

[@saisasisai]

Nice 👌 Tutorial series ...!

[@emmanpictures]

Hello @smartherd. thanks for the great tutorial series. I love this video but I feel that strings would explain this concept better for the example rather than integers because integers multiplied in any order will give the same result but strings concatenated in different orders will show the difference more clearly. I might be wrong though and if I am I stand corrected.

[@dilungasr1322]

You're right... it would make more sense!

[@blackmaurya9201]

simple ,nice and clean explanation !!!!!

[@thingsforyou8644]

Really great explanation

[@yakine13]

DAMN I can even watch his tutorial in x1.5 Speed!! Awesome Teacher!!!

[@smartherd]

Shukriya (thank you in Hindi)

[@jantomczak9246]

its so nice how you explain. although im just starting with coding, i understand almost everything. thanks for your service man

[@karthickrajalearn]

In 1m 50sec Great Tip with Good Example 👌👌👌👌👌

[@mrnoobs7471]

Yeah

[@SyedAlirazarizvi72]

I tried to use { int height = 10 } when defining the function, but Dart Editor produced an error mentioning I can't use "=" sign while setting default parameter value, and advised me to replace = sign with a colon ":". I used colon instead of "=" sign and it worked. But same time this equal sign is working in your example... Is there any version difference, and this usage of equal sign is obsolete in latest versions?. I am using Dark SDK 1.10.1? Please advice.

[@cybernerd7492]

update dart sdk the latest version is 2.13.0

[@krishnakumarramachandran5888]

Perfect Sir👌👍😊

[@Muhammadafaqakram786]

optional named parameter is missing?

[@hit1599]

Can default values be used for optional parameters too?

[@cybernerd7492]

yes

[@BarneyMyBoy]

Short and sharp. Thank you

[@shivamrathore8009]

if the findvolume functions return an integer then, why you haven't specified the return type and also why the code don't provide error

[@m.praveenkumar3702]

Great explanation. What is the difference between [ ] & { } in function parameters

[@somtoonwuagba7448]

The square bracket [ ] is used in positional optional parameter. The curly bracket { } is used in named and default optional parameter.

[@siddarthvarma2210]

we need some notes about this whole dart sir

[@ronikarmakar5079]

Hello sir,how to use optional and named param both in a function for more restrict? please help me fast

[@سلمى-ز9س]

Brilliant!!

[@androidandro7879]

Thanks for the tutorial. They are neat and simple. I have a question in flutter we use a constructor like this : constructor({this.some_value}); some_value is a variable define in that class. Can u please explain the above constructor. Im confused where is the body of the constructor method??

[@annapurnasid]

This is a shortcut. It directly initialises the field variable some_value. So no. Need of body.

[@androidandro7879]

What if i use something like this Constructor(String some_value) { This.some_value = some_value; } Is this the same thing as above?

[@smartherd]

Both are same. The first one was just a syntactic sugar

[@rohitp9371]

Print("Great stuff. Thank you so much");

[@tusharpal7803]

p of print is small print("...");

[@unnesflash4917]

Error class Print doesnt exist . tip : do you mean print

[@ashfaqroy5468]

Great Great Great Great...........................................

[@mdfiroz2415]

Great

[@shivatiwari1127]

Grt👍