Learn the basics of the Sliding Window algorithm in JavaScript. Discover how to optimize tasks with practical examples for efficient data processing.
The sliding window is an algorithm typically used for strings or arrays, which allows analyzing a subset of data using a window of fixed or dynamic size. Simply put, the window, in this case, is a substring or subarray. This window can be moved forward across the data set, effectively analyzing changes within the window without having to recalculate it entirely each time.
For example, in the array , the left pointer at 1 and the right pointer at 2 point to the window . Typically, the pointers are set at the initial position of the string/array. 2) Start shifting/expanding the window. Move the right pointer to consider more elements. 3) Check the conditions within the current window. As soon as the conditions are not met, move the left pointer until the given conditions are satisfied again. 4) Repeat steps 2 and 3 until the end is reached .
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