What is a WeakMap in ES6? How is it different from a Map?

What is a WeakMap in ES6? How is it different from a Map?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, es6, topic-specific, javascript

参考答案摘要

The WeakMap is a collection of key/value pairs, just like the Map. The keys of WeakMap, on the other hand, must be objects, whereas the values can be anything. The object references in the keys are he...

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