fixes Warning issue in utils.js #3375
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This PR fixes the issue #3374
The warning is because the condition args === [] will always return false as JavaScript compares objects by reference, not by value. An empty array is an object, and using === to compare objects, it checks if they refer to the same object in memory.
To fix this, I used its length is 0 to determine if it's an empty array instead of using args===[ ].
@walterbender