| Language Reference
See Also Applies To
Finds the first occurrence a substring within a String object.
"String Literal".indexOf(substring, startindex)
The indexOf method syntax has these arguments:
Part Description substring The substring to search for within the String object. startindex An optional integer value specifying the index to begin searching within the String object. If omitted, searching begins at the beginning of the string.
The indexOf method returns an integer value indicating the beginning of the substring within the String object. If the substring is not found, a -1 is returned. Note that -1 is NOT false (0 is) so if (text.indexOf(" ")) is only true if the space is the first character in the string.
If startindex is negative, startindex is treated as zero. If it is larger than the greatest character position index, it is treated as the largest possible index.
Searching is performed from left to right. Otherwise, this method is identical to lastIndexOf.
© 1997 by Microsoft Corporation. All rights reserved.
|file: /Techref/inet/iis/jscript/htm/js809.htm, 3KB, , updated: 2008/1/31 03:21, local time: 2017/12/10 16:42,
|©2017 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.sxlist.com/techref/inet/iis/jscript/htm/js809.htm"> indexOf Method</A>
|Did you find what you needed?|
Welcome to sxlist.com!
& kind contributors
just like you!
Please don't rip/copy
Copies of the site on CD
are available at minimal cost.
Welcome to www.sxlist.com!