implementation.js 650 B

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  1. 'use strict';
  2. var callBound = require('call-bind/callBound');
  3. var $replace = callBound('String.prototype.replace');
  4. var mvsIsWS = (/^\s$/).test('\u180E');
  5. /* eslint-disable no-control-regex */
  6. var startWhitespace = mvsIsWS
  7. ? /^[\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF]+/
  8. : /^[\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF]+/;
  9. /* eslint-enable no-control-regex */
  10. module.exports = function trimStart() {
  11. return $replace(this, startWhitespace, '');
  12. };