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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
