00001 var baseIndexOf = require('./_baseIndexOf');
00002
00012 function charsStartIndex(strSymbols, chrSymbols) {
00013 var index = -1,
00014 length = strSymbols.length;
00015
00016 while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
00017 return index;
00018 }
00019
00020 module.exports = charsStartIndex;