JavaScript

Comments

Comments identify commands within JavaScript code. They must be placed within the <SCRIPT>...</SCRIPT> tag set to work.

Syntax

This comment

// comment

is a single-line comment where comment is any one line of text, whereas

/* comment */

is a multiple-line where comment is any amount of plain-English text.

<!-- comment

code

// comment -->

The preceding example shows the hide comment, where the comment is any (optional) text and code is JavaScript instructions. This comment hides JavaScript code from non-JavaScript browsers.

Examples

<SCRIPT LANGUAGE = "JavaScript">

<!-- This will start hiding code from non-JavaScript browsers.

//This is a comment, and will be ignored.

document.write ("Hello")

/*Here's a two line comment that will
be ignored */

document.write ("Goodbye")

// and this stops the hiding -->

</SCRIPT>