strip-combining-marks removes Unicode combining marks from strings. It leaves unmatched combining marks (i.e. marks that appear at the start of the string, and don’t belong to a symbol) intact.

Via npm:

npm install strip-combining-marks

Via Bower:

bower install strip-combining-marks

Via Component:

component install mathiasbynens/strip-combining-marks

In a browser:

<script src="strip-combining-marks.js"></script>

In Node.js, io.js, Narwhal, and RingoJS:

var stripCombiningMarks = require('strip-combining-marks');

In Rhino:

load('strip-combining-marks.js');

Using an AMD loader like RequireJS:

require(
  {
    'paths': {
      'strip-combining-marks': 'path/to/strip-combining-marks'
    }
  },
  ['strip-combining-marks'],
  function(stripCombiningMarks) {
    console.log(stripCombiningMarks);
  }
);

A string representing the semantic version number.

This function takes a string and returns the stripped version of that string, where any combining marks that were applied to other symbols have been removed.

stripCombiningMarks('Z͑ͫ̓ͪ̂ͫ̽͏̴̙̤̞͉͚̯̞̠͍A̴̵̜̰͔ͫ͗͢L̠ͨͧͩ͘G̴̻͈͍͔̹̑͗̎̅͛́Ǫ̵̹̻̝̳͂̌̌͘!͖̬̰̙̗̿̋ͥͥ̂ͣ̐́́͜͞');
'ZALGO!'

strip-combining-marks has been tested in Chrome 27, Firefox 3, Safari 4, Opera 10, IE 6, Node.js v0.10.0, io.js v1.0.0, Narwhal 0.3.2, RingoJS 0.8, PhantomJS 1.9.1, and Rhino 1.7RC4.

After cloning this repository, run npm install to install the dependencies needed for strip-combining-marks development and testing. You may want to install Istanbul globally using npm install istanbul -g.

Once that’s done, you can run the unit tests in Node using npm test or node tests/tests.js. To run the tests in Rhino, Ringo, Narwhal, and web browsers as well, use grunt test.

To generate the code coverage report, use grunt cover.

Mathias Bynens

strip-combining-marks is available under the MIT license.