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                                                                                                                                                                                     ÿØÿà JFIF 

  
 
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                                                                                                                                                                                     'use strict';

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;

module.exports = function (str) {
  if (typeof str !== 'string') {
    throw new TypeError('Expected a string');
  }

  return str.replace(matchOperatorsRe,  '\\$&');
};