If you need to observe the exact memory usage of your application at any point, you can use the Heap Snapshotfeature within the Profilestab of the Chrome or Opera developer tools. To get an instant snapshot of memory usage by object, select the Take Heap Snapshotradio button and click the Startbutton. The snapshot taken will be visible in the left-hand panel, which you can select to show you a summary of objects created organized by the constructor function, or builtin type, used to instantiate it, and showing the memory size consumed by each. You can then drill down to find out which objects are consuming more memory than expected to allow you to fix specific issues that might be present in those objects.