| Language Reference
See Also Applies To
Converts strings into integers.
The parseInt method syntax has these parts:
Part Description numstring Required. A string to convert into a number. radix Optional. A value between 2 and 36 indicating the base of the number contained in numstring. If not supplied, strings with a prefix of '0x' are considered hexidecimal and strings with a prefix of '0' are considered octal. All other strings are considered decimal.
The parseInt method returns an integer value equal to the number contained in numstring. If no prefix of numstring can be successfully parsed into an integer, NaN (not a number) is returned.parseInt("abc") // Returns NaN. parseInt("12abc") // Returns 12.
You can test for NaN using the isNaN method.
The uniary minus and plus operators will also convert a string to a number. E.g. var a = + "123" results in a numeric 123 in a.
<SCRIPT> <!-- var a = "123"; var b = +a; document.write("<PRE>"); document.write("<BR>a is "+a+" and is a "+typeof(a)); document.write("<BR>b is "+b+" and is a "+typeof(b)); document.write("</PRE>"); // --> </SCRIPT>
|file: /Techref/inet/iis/jscript/htm/js421.htm, 3KB, , updated: 2008/1/31 03:41, local time: 2018/2/22 09:31,
|©2018 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.piclist.com/techref/inet/iis/jscript/htm/js421.htm"> parseInt Method</A>
|Did you find what you needed?|
PICList 2018 contributors:
o List host: MIT, Site host massmind.org, Top posters @20180222 RussellMc, Sean Breheny, Van Horn, David, David C Brown, Isaac M. Bavaresco, Darron Black, Harold Hallikainen, alan.b.pearce, John Gardner, Mario,
* Page Editors: James Newton, David Cary, and YOU!
* Roman Black of Black Robotics donates from sales of Linistep stepper controller kits.
* Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters.
* Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated!
* Contributors: Richard Seriani, Sr.
Welcome to www.piclist.com!