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Object.watch() (Method)

A means of establishing a call back when a property value changes.

Availability:

JavaScript - 1.2

Netscape - 4.0

Netscape Enterprise Server - 3.0

JavaScript syntax: N myObject.watch()

This is inherited by most object classes in Netscape.

Warnings:

Because of the scoping rules, you cannot actually examine the value of the variable that has changed since the event handler is running in a completely different scope chain.

Example code:

   <HTML>

   <HEAD></HEAD>

   <BODY>

   <SCRIPT>

   document.watch("myVariable", alert("Watch point triggered"))

   document.myVariable = 100;

   </SCRIPT>

   </BODY>

   </HTML>

See also: Object.assign(), Object.unwatch(), unwatch(), watch()

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JavaScript Programmer's Reference, Cliff Wootton Wrox Press (www.wrox.com) Join the Wrox JavaScript forum at p2p.wrox.com Please report problems to support@wrox.com © 2001 Wrox Press. All Rights Reserved. Terms and conditions.

JavaScriptProgrammer'sReference

Object.watch() (Method)

Warnings:

Example code:

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