js element.first() code example

Example: get first element of array javascript

// Method - 1 ([] operator)
var arr = [1, 2, 3, 4, 5];
var first = arr[0];
console.log(first);
/*
    Output: 1
*/

// Method - 2 (Array.prototype.shift())
var arr = [1, 2, 3, 4, 5];
var first = arr.slice(0, 1).shift();
console.log(first);
/*
    Output: 1
*/

// Method - 3 (Destructuring Assignment)
var arr = [1, 2, 3, 4, 5];
const [first] = arr;
console.log(first);
/*
    Output: 1
*/