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When does a memory leak happen?

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in JavaScript by (52.2k points)
When does a memory leak happen?

(a) Browser doesn’t release memory from objects unnecessary

(b) Browser releases too many memories

(c) Browser releases memory iteratively

(d) Browser releases memory quickly

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This intriguing question comes from JavaScript and Memory Leak in division Caching, Debugging and Animation of JavaScript

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Right answer is (a) Browser doesn’t release memory from objects unnecessary

For explanation I would say: Memory leaks happen when your code needs to consume memory in your application, which should be released after a given task is complete but isn’t. Memory leak happens when the browser for some reason doesn’t release memory from objects which are not needed any more.

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