28 Javascript Array Hacks: A Cheat Sheet for Developer

Let's understand javascript array functions and how to use them.

Array.map()

Returns a new array with the results of calling a provided function on every element in this array.

const list = [😫, 😫, 😫, 😫];
list.map((⚪️) => 😀); // [😀, 😀, 😀, 😀]

Array.filter()

Returns a new array with all elements that pass the test implemented by the provided function.

const list = [😀, 😫, 😀, 😫];
list.filter((⚪️) => ⚪️ === 😀); // [😀, 😀]

Array.reduce()

Reduce the array …

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