create empty array javascript

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

//function
const empty = arr => arr.length = 0;
//example
var arr= [1,2,3,4,5];
empty(arr) // arr=[]const myArray1 = []
// or...
const myArray2 = new Array()// Variable array for a wider scope:
var arrayName = [];
// Local scope variable array:
let arrayName = [];A = [];let arrayName = [];