How do you detect memory limits in JavaScript?

Question

Can browsers enforce any sort of limit on the amount of data that can be stored in JavaScript objects? If so, is there any way to detect that limit?

It appears that

Answer 1

In Chrome the answer is Sure!

Go to the console and type:

performance.memory.jsHeapSizeLimit; // will give you the JS heap size
performance.memory.usedJSHeapSize; // how much you're currently using

arr = []; for(var i = 0; i < 100000; i++) arr.push(i);
performance.memory.usedJSHeapSize; // likely a larger number now