reqexp optimization

txt= Array(10000).join('asddas');
console.time("or");
re= /javajava|javggaaa|javvva|adasddsa|adsasd/;
txt.match(re);
console.timeEnd("or");
console.time("trie");
var re= /jav(?:ajava|ggaaa|vva)|ad(?:asddsa|sasd)/;
txt.match(re);
console.timeEnd("trie");
console.log('second operaion');
console.time("or");
re= /javajava|javggaaa|javvva|adasddsa|adsasd/;
txt.match(re);
console.timeEnd("or");
console.time("trie");
var re= /jav(?:ajava|ggaaa|vva)|ad(?:asddsa|sasd)/;
txt.match(re);
console.timeEnd("trie");