Language Reference |
Executes one of two statements depending on a condition.
test ? statement1 : statement2
The ?: operator syntax has these parts:
Part Description test Any Boolean expression. statement1 A statement executed if test is true. May be a compound statement. statement2 A statement executed if test is false. May be a compound statement.
The ?: operator is a shortcut for an if...else statement. It is typically used as part of a larger expression where an if...else statement would be awkward. For example:The example creates a string containing "Good evening." if it is after 6pm. The equivalent code using an if...else statement would look as follows:var now = new Date(); greeting = "Good" + (now.getHours() > 17) ? " evening." : " day.";var now = new Date(); greeting = "Good"; if (now.getHours() > 17) greeting += " evening."; else greeting += " day.";
© 1997 by Microsoft Corporation. All rights reserved.
|file: /Techref/inet/iis/jscript/htm/js639.htm, 3KB, , updated: 2008/1/31 11:41, local time: 2021/10/20 16:47,
|©2021 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?|
<A HREF="http://www.massmind.org/techref/inet/iis/jscript/htm/js639.htm"> ?: Operator</A>
|Did you find what you needed?|
Welcome to massmind.org!
Welcome to www.massmind.org!