yo(selector).els()
yo(selector).els()
Retrieve all the HTML Elements defined by the selector.
If selector does not exists returns null;
var elements = yo('.myclass').els();
console.log(elements.length);
yo(selector).els(n)
Retrieve the n-nth HTML Element defined by the selector.
If the n-nth does not exists or if it is higher than the last one it will return null;
0 <= n < length
yo('.myclass').els(3).clientWidth;
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