JavaScript Array map() Method: Explained with Example

The 'map' method in JavaScript is used to iterate over an array and perform a specific operation on each element of the array. It creates a new array that contains the results of applying the operation to each element.

Here is an example of using the 'map' method in JavaScript:

const numbers = [1, 2, 3, 4, 5];

const doubledNumbers = numbers.map((num) => {
  return num * 2;
});

console.log(doubledNumbers); // Output: [2, 4, 6, 8, 10]

In this example, the 'map' method is used to iterate over the 'numbers' array and multiply each element by 2. The resulting array, 'doubledNumbers', contains the doubled values of the original array.

Note that the 'map' method does not modify the original array; it returns a new array with the modified values.