generate empty array js

1arr = [];   // set array=[]
2
3//function
4const empty = arr => arr.length = 0;
5//example
6var arr= [1,2,3,4,5];
7empty(arr) // arr=[]

1var colors = ["red","blue","green"];
2    colors = []; //empty the array

1Array.from({length: 500})
2
3// change the length to whatever value you want

1let arrayName = [];

1// define Array
2let list = [1, 2, 3, 4];
3function empty() {
4    //empty your array
5    list = [];
6}
7empty();
8

1let myArray = [12 , 222 , 1000 ];  
2myArray.length = 0; // myArray will be equal to [].