Javascript HTMLCollection 使用切片进行数组。 为什么它有效？

Question

Haii so I've recently used converting HTMLCollection to array in order to use the filter method and that by doing Array.prototype.slice.call(htmlcollection).filter(...); from a stackoverflow answer but I can't figure out 2 things:

1. Array.prototype.slice(htmlcollection).filter(...); won't work
2. How can a HTMLCollection use an array method

Finally I'd like to create this behavior in my own classes so I can call Array.prototype.slice.call(new MyClass()).filter(...);

Thanks in advance for your generous contribution and time

Answer 1

You can use the Array.from() method

Reference here