Map and filter method used for operation on the array. Like select element or operation each element, Before filter and map method we use normally for and forEach method.
The fastest way to duplicate an array in JavaScript
The fastest way to duplicate an array in JavaScript depends on the size of the array and the type of elements it contains. Here are three methods for duplicating an array in JavaScript: Using the slice method: Using the spread operator: Using Array.from: All three methods are speedy for small arrays with simple data types … Read more The fastest way to duplicate an array in JavaScript