Array pop and array shift in javascript
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in javascript, `array.pop()` and `array.shift()` are methods used to manipulate arrays by removing elements. `array.pop()` removes the last element from an array and returns that element, modifying the original array's length. this method is commonly used when you need to retrieve and discard the last item in a stack-like structure.
on the other hand, `array.shift()` removes the first element from an array, returning that element while also altering the array's length. it is useful for queue-like operations where elements are processed in a first-in, first-out (fifo) manner. both methods affect the original array, reducing its size and potentially changing the positions of remaining elements. while `pop()` operates on the end of the array, `shift()` works at the beginning, making them essential tools for array management in various programming scenarios.
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