Thread by @AlagarasanWDev

Memoization: Using Proxy in JavaScript

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Memoization is a technique used to optimize the performance of a function by caching its results for a given set of inputs.

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The idea is that if a function is called multiple times with the same input, it's more efficient to return the cached result instead of re-computing the result each time.

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In this example, we use the apply trap to intercept the call to the fibonacci function.

We use the first argument of the function call as a key to check if a cached result is available in the cache map.

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If it is, we return the cached result. If it isn't, we call the original function using the Reflect.apply method, and store the result in the cache.

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This approach can be useful for situations where you have a function that is called multiple times with the same inputs, and the function's result is relatively expensive to compute.

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By using a Proxy to implement memoization, we can ensure that the function's result is only computed once for a given set of inputs, & any subsequent calls with the same inputs will return the cached result, leading to a performance boost.

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You may have had doubts like can I not use the Map directly instead of a Proxy?

Yes, you can, but the Proxy provides traps for better control. I'll post a new thread for that. This is just a sample for your understanding.

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Let me know in the comments if you have any questions.

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