Syntax

• new Map([iterable])
• map.set(key, value)
• map.get(key)
• map.size
• map.clear()
• map.delete(key)
• map.entries()
• map.keys()
• map.values()
• map.forEach(callback[, thisArg])

Parameters

Untitled Database

Remarks

In Maps NaN is considered to be the same as NaN, even though NaN !== NaN. For example:

const map = new Map([[NaN, true]]);
console.log(map.get(NaN)); // true

Creating a Map

Clearing a map