I have a WeakMap like this:
let obj = new WeakMap();
let objKey1={"a":1};
let objKey2={"b":2};
let objKey3={"c":3};
obj.set(objKey1,"value1");
obj.set(objKey2,"value2");
obj.set(objKey3,"value3");
Is there a way to get the length / number of keys stored in obj?
I tried Object.keys(obj).length but it returns 0
From the documentation
But because a WeakMap doesn't allow observing the liveness of its keys, its keys are not enumerable. There is no method to obtain a list of the keys.
It should therefore follow that there is no way to get the number of keys either.