Making a short alias for document.querySelectorAll

Question

I\'m going to be running document.querySelectorAll() a whole lot, and would like a shorthand alias for it.

var queryAll = document.querySelectorAll

queryAll         


        

Answer 1

function $(selector, base = null) {
  base = (base === null) ? document : base;
  return base.querySelector(selector);
}

function $$(selector, base = null) {
  base = (base === null) ? document : base;
  return base.querySelectorAll(selector);
}

Why not simplier ??? :

let $ = (selector, base = document) => {
  let elements = base.querySelectorAll(selector);
  return (elements.length == 1) ? elements[0] : elements;
}