create an empty array javascript code example

Example 1: javascript empty array

arr = [];   // set array=[]

//function
const empty = arr => arr.length = 0;
//example
var arr= [1,2,3,4,5];
empty(arr) // arr=[]

Example 2: create empty array javascript

const myArray1 = []
// or...
const myArray2 = new Array()

Example 3: create an empty array js

let arrayName = [];

Example 4: javascript declare empty array

// Variable array for a wider scope:
var arrayName = [];
// Local scope variable array:
let arrayName = [];

Example 5: javascript empty array

if (array === undefined || array.length == 0) {
    // array empty or does not exist
}

Example 6: javascript empty array

var arr1 = ['a','b','c','d','e','f'];
var arr2 = arr1;  // Reference arr1 by another variable 
arr1 = [];
console.log(arr2); // Output ['a','b','c','d','e','f']