Remove everything after a certain character

Question

Is there a way to remove everything after a certain character or just choose everything up to that character   I m getting the value from an href and up to the      and it s always going to be a different amount of characters   Like this   Controller Action id 11112 amp value 4444   I want the href to be  Controller Action only  so I want to remove everything after the       I m using this now        Delete   click function  e         e preventDefault          var id     this  parents  tr first   attr  id                         var url     this  attr  href          console log url

User · Accepted Answer

You can also use the split   function  This seems to be the easiest one that comes to my mind      url split      0    jsFiddle Demo  One advantage is this method will work even if there is no   in the string - it will return the whole string

User · Answer

var href     Controller Action id 11112 amp value 4444   href   href replace             href         gt   Controller Action   This will work if it finds a     and if it doesn t

User · Answer

May be very late party  p  You can use a back reference        - Inserts the portion of the string that follows the matched substring     x000D   x000D  let str     Controller Action id 11112 amp value 4444  x000D   x000D  let output   str replace       g       x000D   x000D  console log output  x000D   x000D   x000D

User · Answer

It can easly be done using JavaScript for reference see link JS String  EDIT  it can easly done as      var url   Controller Action id 11112 amp value 4444    var parameter Start index url indexOf       var action URL   url substring 0  parameter Start index   alert  action URL     action URL

User · Answer

Worked for me         var first   regexLabelOut replace      g

User · Answer

It works for me very nicely  var x     Controller Action id 11112 amp value 4444   var remove after  x indexOf       var result    x substring 0  remove after   alert result

User · Answer

If you also want to keep     and just remove everything after that particular character  you can do   var str     Controller Action id 11112 amp value 4444       stripped   str substring 0  str indexOf            length       output   Controller Action

User · Answer

var s     Controller Action id 11112 amp value 4444   s   s substring 0  s indexOf        document write s     Sample here  I should also mention that native string functions are much faster than regular expressions  which should only really be used when necessary  this isn t one of those cases    Updated code to account for no       var s     Controller Action   var n   s indexOf       s   s substring 0  n    -1   n   s length   document write s     Sample here

[javascript] Remove everything after a certain character

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