JavaScript .map() method🚀

The .map() method is a built-in JavaScript method that allows you to create a new array with the results of calling a provided function on every element in the original array. It essentially creates a new array by performing an operation on each element of the original array.

Here’s the basic syntax of the .map() method:

array.map(function(currentValue, index, arr), thisValue)

• function(currentValue, index, arr) is the function that will be executed on every element of the array.
• currentValue is the value of the current element being processed.
• index is the index of the current element being processed.
• arr is the original array that the .map() method was called on.
• thisValue is an optional parameter that can be used to set the this value in the callback function.

Here’s an example of how to use the .map() method:

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

const squaredNumbers = numbers.map(function(number) {
  return number * number;
});

console.log(squaredNumbers); // Output: [1, 4, 9, 16, 25]

In this example, we have an array of numbers. We then use the .map() method to create a new array called squaredNumbers, which contains the squares of each number in the original array…