Get everything after the dash in a string in JavaScript

Question

What would be the cleanest way of doing this that would work in both IE and Firefox  My string looks like this sometext-20202 Now the sometext and the integer after the dash can be of varying length  Should I just use substring and index of or are there other ways

User · Answer

var the string    sometext-20202   var parts   the string split  -   2       After calling split     parts  is an array with two elements     parts 0  is  sometext     parts 1  is  20202   var the text   parts 0   var the num    parts 1

User · Answer

A solution I prefer would be   const str    sometext-20202   const slug   str split  -   pop      Where slug would be your result

User · Answer

You can do it with built-in RegExp pattern   flags   Factory Notation in js like this   RegExp  -       exec  sometext-20202   1    in above code exec function will return an array with two elements    -20202    20202    one with hyphen -20202  and one without hyphen 20202    you should pick second element  index 1

User · Answer

myString split  -   splice 1  join  -

User · Answer

AFAIK  both substring   and indexOf   are supported by both Mozilla and IE  However  note that substr   might not be supported on earlier versions of some browsers  esp  Netscape Opera    Your post indicates that you already know how to do it using substring   and indexOf    so I m not posting a code sample

User · Answer

For those trying to get everything after the first occurance  Something like  quot Nic K Cage quot  to  quot K Cage quot   You can use slice to get everything from a certain character  In this case from the first space  const delim    quot   quot  const name    quot Nic K Cage quot   const end   name split delim  slice 1  join delim     prints   quot K Cage quot   Or if OP s string had two hyphens  const text    quot sometext-20202-03 quot     Option 1 const op1   text slice text indexOf  -    slice 1     prints  20202-03    Option 2 const op2   text split  -   slice 1  join  quot - quot          prints  20202-03

User · Answer

I came to this question because I needed what OP was asking but more than what other answers offered  they re technically correct  but too minimal for my purposes   I ve made my own solution  maybe it ll help someone else  Let s say your string is  Version 12 34 56   If you use     to split  the other answers will tend to give you  56   when maybe what you actually want is   34 56   i e  everything from the first occurrence instead of the last  but OP s specific case just so happened to only have one occurrence   Perhaps you might even want  Version 12   I ve also written this to handle certain failures  like if null gets passed or an empty string  etc    In those cases  the following function will return false  Use splitAtSearch  Version 12 34 56           Returns   Version 12     34 56    Function        Splits string based on first result in search     param  string  string - String to split     param  string  search - Characters to split at     return  array false  - Strings  split at search                           False on blank string or invalid type     function splitAtSearch  string  search         let isValid   string                        Disallow Empty                 amp  amp  typeof string      string     Allow strings                   typeof string      number     Allow numbers      if   isValid    return false      Failed     else            string            Ensure string type         Search     let searchIndex   string indexOf search      let isBlank           search             let isFound       searchIndex     -1     let noSplit       searchIndex     0     let parts                    Remains whole     if   isFound    noSplit    isBlank            parts 0    string              Requires splitting     else           parts 0    string substring 0  searchIndex          parts 1    string substring searchIndex             return parts    Examples splitAtSearch                             false splitAtSearch true                        false splitAtSearch false                       false splitAtSearch null                        false splitAtSearch undefined                   false splitAtSearch NaN                           NaN   splitAtSearch  foobar    ba                 foo    bar   splitAtSearch  foobar                       foobar   splitAtSearch  foobar    z                  foobar   splitAtSearch  foobar    foo                foobar   not       foobar   splitAtSearch  blah bleh bluh    bl         blah bleh bluh   splitAtSearch  blah bleh bluh    ble        blah     bleh bluh   splitAtSearch   10 99                        10     99   splitAtSearch 3 14159                       3     14159

User · Answer

You can use split method for it  And if you should take string from specific pattern you can use split with req  exp    x000D   x000D  var string    sometext-20202   console log string split  -       1   x000D   x000D   x000D

User · Answer

How I would do this      function you can use  function getSecondPart str        return str split  -   1        use the function  alert getSecondPart  sometext-20202

User · Answer

var testStr    sometext-20202  var splitStr   testStr substring testStr indexOf  -     1

User · Answer

Use a regular expression of the form   w- d  where a  w represents a word and  d represents a digit  They won t work out of the box  so play around  Try this

User · Answer

Everyone else has posted some perfectly reasonable answers  I took a different direction  Without using split  substring  or indexOf  Works great on i e  and firefox  Probably works on Netscape too  Just a loop and two ifs  function getAfterDash str        var dashed   false      var result    quot  quot       for  var i   0  len   str length  i  lt  len  i              if  dashed                result   result   str i                     if  str i       -                 dashed   true                      return result      console log getAfterDash  quot adfjkl-o812347 quot      My solution is performant and handles edge cases   The point of the above code was to procrastinate work  please don t actually use it

[javascript] Get everything after the dash in a string in JavaScript

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