JavaScript从内存中删除元素

Question

I'm trying to do something like limitless scrolling at Facebook. Everything was good but after loading more than 200 posts my browser crashed out (of course it's obvious, I run out of memory). After reading some threads here I'm little bit consused.

My code looks like

let elements = document.querySelectorAll("div[id^=mall_post]");
elements[0].remove();
delete elements[0];

I don't know how to solve it. As I know as GC will delete it if there won't be any references, but how to check which part of code is pointing for it?

Answer 1

使用chrome开发人员工具拍摄堆快照，您可以看到可以优化的内容和正在引用的对象。