javascript array functions cheat sheet

in javascript, arrays are a fundamental data structure used to store and manipulate collections of data. javascript provides a variety of built-in array functions to help you work with arrays efficiently. in this cheat sheet, we will cover some commonly used array functions and provide code examples to demonstrate how they work.

the map() function creates a new array by applying a provided function to each element in the calling array. it does not mutate the original array.
the filter() function creates a new array with all elements that pass a provided test implemented by the provided function.
the reduce() function applies a function against an accumulator and each element in the array to reduce it to a single value.
the find() function returns the first element in the array that satisfies the provided testing function.
the includes() function determines whether an array includes a certain element and returns true or false.

by using these array functions effectively, you can perform various operations on arrays with ease and write more concise and readable code.

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