How to return part of string before a certain character

Question

If you look at the jsfiddle from question   var str    Abc  Lorem ipsum sit amet   str   str substring str indexOf        1     This returns all characters after the    how can I adjust this to return all the characters before the    something like var str sub   str substr str lastIndexOf      1   but this does not work

User · Accepted Answer

You fiddle already does the job     maybe you try to get the string before the double colon   you really should edit your question  Then the code would go like this    str substring 0  str indexOf          Where  str  represents the variable with your string inside   Click here for JSFiddle Example  Javascript  var input string   document getElementById  my-input   innerText  var output element   document getElementById  my-output     var left text   input string substring 0  input string indexOf         output element innerText   left text    Html   lt p gt     lt h5 gt Input  lt  h5 gt     lt strong id  my-input  gt Left Text Right Text lt  strong gt     lt h5 gt Output  lt  h5 gt     lt strong id  my-output  gt XXX lt  strong gt   lt  p gt    CSS  body   font-family  Calibri  sans-serif  color  555    h5   margin-bottom  0 8em    strong     width 90     padding  0 5em 1em    background-color  cyan     my-output   background-color  gold

User · Answer

And note that first argument of subString is 0 based while second is one based   Example   String str   0123456   String sbstr  str substring 0 5     Output will be sbstr  01234 and not sbstr   012345

User · Answer

Another method could be to split the string by     and then pop off the end   var newString   string split      pop

User · Answer

In General a function to return string after substring is    x000D   x000D  function getStringAfterSubstring parentString  substring    x000D      return parentString substring parentString indexOf substring    substring length  x000D    x000D   x000D  function getStringBeforeSubstring parentString  substring    x000D      return parentString substring 0  parentString indexOf substring   x000D    x000D  console log getStringAfterSubstring  abcxyz123uvw    123    x000D  console log getStringBeforeSubstring  abcxyz123uvw    123    x000D   x000D   x000D

[javascript] How to return part of string before a certain character?

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