• es5에서 Array Like 객체를 Array로 변환하는 방법
const arrLike = document.getElementsByTagName('div');
const arr = Array.prototype.slice.call(arrLike);
  • es6에서 Array Like 객체를 Array로 변환하는 방법
const arrLike = document.getElementsByTagName('div');
let arr = [...arrLike]; // iterable할 경우에 
arr = Array.from();

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