Functions in JavaScript | JavaScript Functions Tutorial In Hindi/Urdu
What is "Functions" in JavaScript Tutorial in Hindi / Urdu |
In this tutorial, we will learn the how to use of "functions" in JavaScript with easy and best explanation. | JavaScript Tutorial | Learn JavaScript for Beginners.
What is "functions" in JavaScript?
A function is a block of code that performs a particular task.
A JavaScript function is executed when "something" invokes it (calls it).
‘Function Invocation (Calling)’ in JavaScript?
The code inside the function will execute when "something" invokes (calls) the function:
1. When an event occurs (when a user clicks a button)
2. When it is invoked (called) from JavaScript code
3. Automatically (self invoked)
Advantages of Functions?
1. Function makes the code reusable.
2. Define the code once, and use it many times.
3. Function increases readability.
4. You can use the same code many times with different arguments, to produce different results.
5. Function makes the program easier as each small task is divided into a function.
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In this Video Tutorial I will give you full training about "functions" in JavaScript with easy and best explanation.
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🎬 VIDEO CHAPTERS AND CONTENT
0:00 Intro
0:05 About Functions introduction
0:14 What is Functions?
0:48 How invoke/calling works in functions
1:26 Advantages of functions
3:22 Syntax of functions
5:26 Lets do practice in Code Editor
7:00 How to use function in program
8:23 How invoke/calling function works
11:00 Like, Share & Subscribe
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