trim in JavaScript not working in IE

Question

I tried to apply  trim   to a string in one of my JavaScript programs  It s working fine under Mozilla  but an error displays when I try it in IE8   Does anyone know what is going on here  Is there anyway I can make it work in IE   code   var ID   document getElementByID  rep id   value trim      error display   Message  Object doesn t support this property or method Line  604 Char  2 Code  0 URI  http   test localhost test js

User · Answer

I had the same problem in IE9 However when I declared the supported html version with the following tag on the first line before the

<!DOCTYPE html>
<HTML>
<HEAD>...
.
.

The problem was resolved.

User · Answer

It looks like that function isn t implemented in IE  If you re using jQuery  you could use   trim   instead  http   api jquery com jQuery trim

User · Answer

I don t think there s a native trim   method in the JavaScript standard  Maybe Mozilla supplies one  but if you want one in IE  you ll need to write it yourself  There are a few versions on this page

User · Answer

I have written some code to implement the trim functionality   LTRIM  trim left    function ltrim s        var l 0      while l  lt  s length  amp  amp  s l                  l          return s substring l  s length        RTRIM  trim right    function rtrim s        var r s length -1      while r  gt  0  amp  amp  s r                  r- 1          return s substring 0  r 1        TRIM  trim both sides    function trim s        return rtrim ltrim s        OR   Regular expression is also available which we can use   function trimStr str      return str replace    s   s   g           Useful Explanation

User · Answer

https   developer mozilla org En Core JavaScript 1 5 Reference Global Objects String Trim  This is a pretty recent addition to javascript  and its not supported by IE

User · Answer

Add the following code to add trim functionality to the string   if typeof String prototype trim      function       String prototype trim   function         return this replace    s   s   g

User · Answer

Just found out that IE stops supporting trim    probably after a recent windows update  If you use dojo  you can use dojo string trim    it works cross platform

User · Answer

I had a similar issue when trying to trim a value from an input and then ask if it was equal to nothing   if    this  val   trim            However this threw a spanner in the works for IE6 - 8  Annoyingly enough I d tried to var it up like so       var originalValue     this  val      However  using jQuery s trim method  works perfectly for me in all browsers    var originalValueTrimmed     trim   this  val                               if  originalValueTrimmed

User · Answer

We can get official code From the internet  Refer this   https   developer mozilla org en-US docs Web JavaScript Reference Global Objects String trim     Running the following code before any other code will create trim   if it s not natively available   if   String prototype trim       function            Make sure we trim BOM and NBSP     var rtrim       s uFEFF xA0     s uFEFF xA0    g      String prototype trim   function           return this replace rtrim                           for more  I just found there is js project for supporting EcmaScript 5  https   github com es-shims es5-shim by reading the source code  we can get more knowledge about trim    defineProperties StringPrototype        http   blog stevenlevithan com archives faster-trim-javascript     http   perfectionkills com whitespace-deviations    trim  function trim         if  typeof this      undefined     this     null          throw new TypeError  can t convert     this     to object              return String this  replace trimBeginRegexp      replace trimEndRegexp              hasTrimWhitespaceBug

User · Answer

This is because of typo error getElementByID  Change it to getElementById

User · Answer

Unfortunately there is not cross browser JavaScript support for trim     If you aren t using jQuery  which has a  trim   method  you can use the following methods to add trim support to strings   String prototype trim   function         return this replace    s   s   g        String prototype ltrim   function         return this replace    s          String prototype rtrim   function         return this replace   s

User · Answer

var res   function str       var ob  var oe      for var i   0  i  lt  str length  i             if str charAt i          amp  amp  ob    undefined  ob   i           if str charAt i          oe   i             return str substring ob oe 1

User · Answer

jQuery     trim      mycomment   val        Someone uses     mycomment   val   trim    but this will not work on IE

User · Answer

This issue can be caused by IE using compatibility mode on intranet sites  There are two ways to resolve this  you can either update IE to not use compatibility mode on your local machine  in IE11  Tools-  Compatibility View Settings -  Uncheck Display intranet sites in Compatibility View   Better yet you can update the meta tags in your webpage  Add in        lt head gt      lt meta http-equiv  X-UA-Compatible  content  IE edge  gt   lt  head gt        What does this mean  It is telling IE to use the latest compatibility mode  More information is available in MSDN  Specifying legacy document modes

[javascript] .trim() in JavaScript not working in IE

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