Core JavaScript 1.5 Reference - Ch 4. Comments

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Core JavaScript Reference 1.5


Chapter 4  


This chapter describes the syntax for comments, which can appear anywhere between tokens.


Notations by the author to explain what a script does. Comments are ignored by the interpreter.

Implemented in  

JavaScript 1.0, NES 2.0  

ECMA version  



// comment text
/* multiple line comment text */

JavaScript supports Java-style comments:

  • Comments on a single line are preceded by a double-slash (//).
  • Comments that span multiple lines are preceded by a /* and followed by a */.


// This is a single-line comment.
/* This is a multiple-line comment. It can be of any length, and
you can put whatever you want here. */

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Last Updated September 28, 2000