js Array empty code example

Example 1: javascript check if array is empty

if (typeof array !== 'undefined' && array.length === 0) {
    // the array is defined and has no elements
}

Example 2: javascript check if array is empty

if (array && !array.length) {
    // array is defined but has no element
}

Example 3: js how to check is array empty es6

var colors=[];
if(!colors.length){
	// I am empty
}else{
	// I am not empty
}

Example 4: javascript empty array

var colors = ["red","blue","green"];
    colors = []; //empty the array

Example 5: 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 6: create empty array javascript

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