Remove special symbols and extra spaces and replace with underscore using the replace method

Question

I want to remove all special characters and spaces from a string and replace with an underscore  The string is      var str    hello world  amp  hello universe     I have this now which replaces only spaces         str replace   s g          The result I get is hello world  amp  hello universe  but I would like to remove the special symbols as well   I tried this str replace    a-zA-Z0-9  s g       but this does not help

User · Answer

Remove the  s from your new regex and it should work - whitespace is already included in  anything but alphanumerics    Note that you may want to add a   after the   so you don t get sequences of more than one underscore  You can also chain onto  replace          g     to trim off underscores at the start or end of the string

User · Answer

Your regular expression   a-zA-Z0-9  s g says match any character that is not a number or letter followed by a space   Remove the  s and you should get what you are after if you want a   for every special character   var newString   str replace    A-Z0-9  ig          That will result in hello world   hello universe  If you want it to be single underscores use a   to match multiple  var newString   str replace    A-Z0-9   ig          That will result in hello world hello universe

User · Answer

If you have a text as   var sampleText                   TESTED             amp      amp  amp       XYZ   To replace all special character         amp      amp  amp          without replacing the characters including umlaut   Use below regex  sampleText   sampleText replace            amp      -         lt         s  gi       OUTPUT   sampleText                    TESTED                           XYZ   This would replace all with an underscore which is provided as second argument to the replace function You can add whatever you want as per your requirement

User · Answer

var str    hello world  amp  hello universe   In order to replace both Spaces and Symbols in one shot  we can use the below regex code   str replaceAll    W        Note   W -  represents Not Words  includes spaces special characters      -  one or many matches  Try it

User · Answer

It was not asked precisely to remove accent  only special characters   but I needed to   The solutions givens here works but they don   t remove accent          etc   So  before doing epascarello   s solution  you can also do    x000D   x000D  var newString    d  veloppeur  amp  int  grateur   x000D   x000D  newString   replaceAccents newString   x000D  newString   newString replace    A-Z0-9   ig        x000D  alert newString   x000D   x000D      x000D     Replaces all accented chars with regular ones x000D      x000D  function replaceAccents str    x000D       Verifies if the String has accents and replace them x000D    if  str search    xC0- xFF  g   gt  -1    x000D      str   str x000D         replace    xC0- xC5  g   A   x000D         replace    xC6  g   AE   x000D         replace    xC7  g   C   x000D         replace    xC8- xCB  g   E   x000D         replace    xCC- xCF  g   I   x000D         replace    xD0  g   D   x000D         replace    xD1  g   N   x000D         replace    xD2- xD6 xD8  g   O   x000D         replace    xD9- xDC  g   U   x000D         replace    xDD  g   Y   x000D         replace    xDE  g   P   x000D         replace    xE0- xE5  g   a   x000D         replace    xE6  g   ae   x000D         replace    xE7  g   c   x000D         replace    xE8- xEB  g   e   x000D         replace    xEC- xEF  g   i   x000D         replace    xF1  g   n   x000D         replace    xF2- xF6 xF8  g   o   x000D         replace    xF9- xFC  g   u   x000D         replace    xFE  g   p   x000D         replace    xFD xFF  g   y    x000D      x000D   x000D    return str  x000D    x000D   x000D   x000D    Source  https   gist github com jonlabelle 5375315

[javascript] Remove special symbols and extra spaces and replace with underscore using the replace method

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