Return string without trailing slash

Question

I have two variables     site1    www somesite com     site2    www somesite com        I want to do something like this  function someFunction site           If the var has a trailing slash  like site2           remove it and return the site without the trailing slash     return no trailing slash url      How do I do this

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function stripTrailingSlash str        if str substr -1                     return str substr 0  str length - 1             return str      Note  IE8 and older do not support negative substr offsets  Use str length - 1 instead if you need to support those ancient browsers

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function stripTrailingSlash text        return text          split               filter Boolean           join           another solution

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I know the question is about trailing slashes but I found this post during my search for trimming slashes  both at the tail and head of a string literal   as people would need this solution I am posting one here        I am free     replace            g          returns  I am free      UPDATE   as  Stephen R mentioned in the comments  if you want to remove both slashes and backslashes both at the tail and the head of a string literal  you would write            I am free           replace                  g         returns  I am free

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ES6   ES2015 provides an API for asking whether a string ends with something  which enables writing a cleaner and more readable function   const stripTrailingSlash    str    gt        return str endsWith                str slice 0  -1            str

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Based on  vdegenne  s answer    how to strip   Single trailing slash   theString replace              Single or consecutive trailing slashes   theString replace       g        Single leading slash   theString replace              Single or consecutive leading slashes   theString replace       g        Single leading and trailing slashes   theString replace          g       Single or consecutive leading and trailing slashes   theString replace            g       To handle both slashes and backslashes  replace instances of    with

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Here a small url example    var currentUrl   location href   if currentUrl substr -1                currentUrl   currentUrl substr 0  currentUrl length - 1       log the new url  console log currentUrl

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Some of these examples are more complicated than you might need  To remove a single slash  from anywhere  leading or trailing   you could get away with something as simple as this  let no trailing slash url   site replace            Complete example  let site1    quot www somesite com quot     let site2    quot www somesite com  quot      function someFunction site        let no trailing slash url   site replace               return no trailing slash url     console log someFunction site2       www somesite com  Note that  replace      returns a string  it does not modify the string it is called on

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I d use a regular expression   function someFunction site       if site has an end slash  like  www example com       then remove it and return the site without the end slash return site replace               Match a forward slash   at the end of the string         You ll want to make sure that the variable site is a string  though

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The easies way i know of is this  function stipTrailingSlash str      if srt charAt str length-1           str   str substr 0  str length - 1       return str     This will then check for a   on the end and if its there remove it if its not will return your string as it was  Just one thing that i cant comment on yet  ThiefMaster wow you dont care about memory do you lol runnign a substr just for an if   Fixed the calucation for zero-based index on the string

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Try this   function someFunction site                  return site replace

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function someFunction site      if  site indexOf       gt  0      return site substring 0  site indexOf          return site

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This snippet is more accurate   str replace                  1       It not strips   strings  as it s a valid url  It strips strings with multiple trailing slashes

[javascript] Return string without trailing slash

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