javascript implementation of querySelectorAll
npm install query-selectorquerySelectorAll in javascript




require jsdom
```
var querySelectorAll = require('query-selector');
var jsdom = require("jsdom").jsdom;
var doc = jsdom('12');
var time = Date.now();
console.log(doc.querySelectorAll('#t span', doc).length);
console.log(doc.querySelectorAll('#t span', doc)[0].innerHTML);
console.log(Date.now()-time);
time = Date.now();
console.log(querySelectorAll('#t span', doc).length);
console.log(querySelectorAll('#t span', doc)[0].innerHTML);
console.log(Date.now()-time);
`html``
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