Remove all special characters except space from a string using JavaScript

Question

I want to remove all special characters except space from a string using JavaScript   For example  abc s test s should output as abcs tests

User · Answer

Try to use this one var result  stringToReplace replace     w s  g           is for negation   w for  a-zA-Z0-9   word characters and  s for space      g for global

User · Answer

You should use the string replace function  with a single regex  Assuming by special characters  you mean anything that s not letter  here is a solution    x000D   x000D  const str    abc s test s   x000D  console log str replace    a-zA-Z   g        x000D   x000D   x000D

User · Answer

Try this  const strippedString   htmlString replace    lt     gt     gt   gi   quot  quot    console log strippedString

User · Answer

x000D   x000D  const str    abc s thy  g amp test s   console log str replace    a-zA-Z   g        x000D   x000D   x000D

User · Answer

x000D   x000D  const input     if 1   PR CONTRACT END DATE      23-09-2019     x000D  Test27919 lt alerts imimobile com gt   elseif 1   PR CONTRACT START DATE       20-09-2019    x000D  Sender539 lt rama sns gmail com gt   elseif 1   PR ACCOUNT ID      1234    x000D  AdestraSID lt hello imimobile co gt   else 1 Test27919 lt alerts imimobile com gt  endif 1    x000D  const replaceString   input split       join  - gt    split      join   lt -    x000D   x000D   x000D  console log replaceString match     lt  - gt         lt -  g    x000D   x000D   x000D

User · Answer

search all not  word characters    space    str replace     w

User · Answer

You can do it specifying the characters you want to remove   string   string replace    amp                    lt  gt     g         Alternatively  to change all characters except numbers and letters  try   string   string replace    a-zA-Z0-9  g

User · Answer

Whose special characters you want to remove from a string  prepare a list of them and then user javascript replace function to remove all special characters   var str    abc de   sfjkewr47239847duifyh   alert str replace         replace         replace         replace             or you can run loop for a whole string and compare single single character with the ASCII code and regenerate a new string

User · Answer

I don t know JavaScript  but isn t it possible using regex   Something like    w d s  will match anything but digits  characters and whitespaces  It would be just a question to find the syntax in JavaScript

User · Answer

dot     may not be considered special  I have added an OR condition to Mozfet s  amp  Seagull s answer   function isNumber  text          reg   new RegExp   0-9             if text            return reg test text                 return false         function removeSpecial  text      if text        var lower   text toLowerCase        var upper   text toUpperCase        var result           for var i 0  i lt lower length    i          if isNumber text i       lower i     upper i       lower i  trim               lower i  trim                       result    text i                     return result        return

User · Answer

The first solution does not work for any UTF-8 alphabet   It will cut text such as          I have managed to create a function which does not use RegExp and use good UTF-8 support in the JavaScript engine  The idea is simple if a symbol is equal in uppercase and lowercase it is a special character  The only exception is made for whitespace       function removeSpecials str        var lower   str toLowerCase        var upper   str toUpperCase         var res           for var i 0  i lt lower length    i            if lower i     upper i     lower i  trim                       res    str i             return res      Update  Please note  that this solution works only for languages where there are small and capital letters  In languages like Chinese  this won t work   Update 2  I came to the original solution when I was working on a fuzzy search  If you also trying to remove special characters to implement search functionality  there is a better approach  Use any transliteration library which will produce you string only from Latin characters and then the simple Regexp will do all magic of removing special characters   This will work for Chinese also and you also will receive side benefits by making Troms      Tromso

User · Answer

I tried Seagul s very creative solution  but found it treated numbers also as special characters  which did not suit my needs  So here is my  failsafe  tweak of Seagul s solution       return true if char is a number function isNumber  text      if text        var reg   new RegExp   0-9           return reg test text         return false     function removeSpecial  text      if text        var lower   text toLowerCase        var upper   text toUpperCase        var result           for var i 0  i lt lower length    i          if isNumber text i       lower i     upper i       lower i  trim                      result    text i                     return result        return

[javascript] Remove all special characters except space from a string using JavaScript

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