return this.indexOf(pattern) == 0; 
return this.indexOf(pattern) === 0; 
  startsWith: function(pattern) {    return this.indexOf(pattern) == 0;  },
5582	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5582/fc91a3e456ef26d0fe0296e4959fadfa2d081dd0/string.js/buggy/src/string.js