3. The use of the find

In JavaScript, the find() method returns the value of the first element in the array that meets the criteria, or undefined if it does not. Such as:

Const arr =,4,25,57,100 [2]; const a = arr.find(item=>item>50); console.log(a) //a=57Copy the code

Note: 1. The find method does not alter the array. 2. Extension: findIndex() returns the index position of the element that matches the criteria.