node_modules/underscore.string/escapeHTML.js

var makeString = require('./helper/makeString');
var escapeChars = require('./helper/escapeChars');

var regexString = "[";
for(var key in escapeChars) {
  regexString += key;
}
regexString += "]";

var regex = new RegExp( regexString, 'g');

module.exports = function escapeHTML(str) {

  return makeString(str).replace(regex, function(m) {
    return '&' + escapeChars[m] + ';';
  });
};