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How to Add Comment In JavaScript? JavaScript comment syntax?
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Hello, guys welcome to Codewithrandom Blog, Today we learn about JavaScript Comments. JavaScript Comments are used to make programming easier to read and understand.
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Comments are not executed by the browser. Comments can be used to add notes, suggestions, and hints to a JavaScript code.
There are two types of comments in JavaScript, The single-line and the multi-line Comment
Single-Line Comments in JavaScript:-
Ce-line comment, add two forward slash // to the beginning of the line.
this makes all text following it to be a comment.
Here is an example:
// this is single-line comment function myFunc() { var text = "Welcome to Code with Random"; document.getElementByID("demo").innerHTML = text; }
Another way is to use the /* */, the comment goes between the asterisks.
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This technique is much more flexible. Here is an example:
/* this is single-line comment */ function myFunc() { var text = "Welcome to Code with Random"; document.getElementByID("demo").innerHTML = text; }
Multi-Line Comments In JavaScript:-
To make multi-line comments, use this syntax:
/* your multi-line comments your multi-line comments your multi-line comments */
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function myFunc() { var x = 6; var y = 9; var sum = x + y; /* let's add the value of y to x and then print the sum */ /* you can also comment like this sometimes it's more convenient and easier to see */ document.getElementByID("demo").innerHTML = sum; }
In the example below, only the product will be written. Because the writing of the sum to the element will not be executed.
document.getElementByID("demo").innerHTML = product; // document.getElementByID("demo").innerHTML = product; }
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written by @codingporium