Functions (With Optional & Required Parameters) - Flutter | Dart ~ Episode 1.4

Hey Coders! I like to think of functions similar to variables when coding in Dart. The difference is when creating a variable, you are storing a single piece of data to be used at a later time. When you create a function, you store an entire code block to be run later down in your code. Why store a block of code as a function instead of just running it immediately when you need it? There will be times when you need to run that section of code many times, and storing it as a function enhances its reusability, not to mention the code's overall readability. In this video, we'll examine how to make functions in Dart, accepting optional and required parameters, and lambda functions.

Check out the source code on GitHub:
https://github.com/davidtheweiss/Flutter-Season-1-Dart

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🧑‍💻 Dart Documentation: https://dart.dev/guides

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🕒 Timestamps
0:00 Intro
0:15 What are Functions?
1:38 How to Write a Function With No Parameters
4:01 How to Write a Function With One or More Parameters/Arguments
6:30 How to Write a Function With Optional Positional Parameters
9:14 How to Write a Function With Optional Named Parameters
10:54 How to Give Default Values to Optional Parameters
12:20 Lambda Functions in Dart (aka Arrow Functions)
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Видео Functions (With Optional & Required Parameters) - Flutter | Dart ~ Episode 1.4 канала David Weiss