Datagrid Test - Memory Leak
- Open console and go to `Memory` tab
- Select `Heap snapshot`
- Click on `Take heap snapshot` button in left nav toolbar
- Click on `Initialize` button and then `Destroy` button in browser
- Now in console `Memory` tab` click on `Collect garbage` button (trash icon)
- Click again on `Take heap snapshot` button in left nav toolbar to create another snapshot
- Click on `Summrary` dropdown to change `Comparison`
- Type `Detached` to next input to filter
- See in column `# Delta`
- Check all numbers should be less-than or equal to zero