Array slice vs splice in javascript a huge difference

in javascript, both `slice` and `splice` are methods used to manipulate arrays, but they serve distinct purposes. the `slice` method is utilized to create a shallow copy of a portion of an array, returning a new array without altering the original. it takes two arguments: the starting index and the ending index, allowing developers to extract a specific range of elements.

on the other hand, the `splice` method modifies the original array by adding or removing elements. it can remove elements at a specified index, replace them, or add new elements in their place. the `splice` method is versatile, capable of both reducing and expanding the array's size.

in summary, the key difference lies in their functionality: `slice` is for creating subarrays without modifying the original array, while `splice` directly alters the array by removing, replacing, or adding elements.
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