Regular Expression to get a string between parentheses in Javascript

Question

I am trying to write a regular expression which returns a string which is between parentheses  For example  I want to get the string which resides between the strings     and      I expect five hundred dollars   500     would return   500   Found Regular Expression to get a string between two strings in Javascript  But I m new with regex  I don t know how to use          in regexp

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You need to create a set of escaped  with    parentheses  that match the parentheses  and a group of regular parentheses that create your capturing group    x000D   x000D  var regExp                  x000D  var matches   regExp exec  I expect five hundred dollars   500      x000D   x000D    matches 1  contains the value between the parentheses x000D  console log matches 1    x000D   x000D   x000D    Breakdown         match an opening parentheses     begin capturing group        match one or more non   characters     end capturing group      match closing parentheses   Here is a visual explanation on RegExplained

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var str    I expect five hundred dollars   500    1     var rex       d          alert rex exec str      Will match the first number starting with a   and followed by          will not be part of the match  The code alerts with the first match   var str    I expect five hundred dollars   500    1     var rex       d        g  var matches   str match rex   for  var i   0  i  lt  matches length  i          alert matches i        This code alerts with all the matches   References   search for    n  http   www w3schools com jsref jsref obj regexp asp  search for  x   y   https   developer mozilla org en docs Web JavaScript Reference Global Objects RegExp

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Alternative   var str    I expect five hundred dollars   500    1     str match          g  map x   gt  x replace       g             2      500     1     It is possible to replace brackets with square or curly brackets if you need

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For just digits after a currency sign        s  d  s    should work  Or        for anything inside brackets

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Try string manipulation   var txt    I expect five hundred dollars   500   and new brackets   600    var newTxt   txt split       for  var i   1  i  lt  newTxt length  i          console log newTxt i  split      0        or regex  which is somewhat slow compare to the above   var txt    I expect five hundred dollars   500   and new brackets   600    var regExp                g  var matches   txt match regExp   for  var i   0  i  lt  matches length  i          var str   matches i       console log str substring 1  str length - 1

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Simple     lt value gt    lt               I hope I ve helped

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To match a substring inside parentheses excluding any inner parentheses you may use               pattern  See the regex demo  In JavaScript  use it like var rx                 g   Pattern details     - a   char          - Capturing group 1  a negated character class matching any 0 or more chars other than   and      - a   char   To get the whole match  grab Group 0 value  if you need the text inside parentheses  grab Group 1 value  Most up-to-date JavaScript code demo  using matchAll    x000D   x000D  const strs     I expect five hundred dollars   500      I expect      five hundred dollars   500      const rx                 g  strs forEach x   gt      const matches       x matchAll rx      console log  Array from matches  m   gt  m 0         All full match values   console log  Array from matches  m   gt  m 1         All Group 1 values     x000D   x000D   x000D   Legacy JavaScript code demo  ES5 compliant    x000D   x000D  var strs     I expect five hundred dollars   500      I expect      five hundred dollars   500      var rx                 g    for  var i 0 i lt strs length i        console log strs i          Grab Group 1 values    var res     m    while m rx exec strs i          res push m 1          console log  Group 1     res         Grab whole values   console log  Whole matches     strs i  match rx      x000D   x000D   x000D

User · Answer

Simple solution  Notice  this solution can be used for strings having only single     and     like string in this question     I expect five hundred dollars   500     match             pop      Online demo  jsfiddle

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x000D   x000D  let str    Before brackets  Inside brackets  After brackets  replace            g       x000D  console log str     Inside brackets x000D   x000D   x000D

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Ported Mr Green s answer to a functional programming style to avoid use of temporary global variables   var matches   string2 split         filter function v   return v indexOf       gt  -1      map  function value         return value split      0

[javascript] Regular Expression to get a string between parentheses in Javascript

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