how to make array empty

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

1A = [];

1let list = [1, 2, 3, 4];
2function empty() {
3    //empty your array
4    list.length = 0;
5}
6empty();
7

1A.length = 0

1var arr1 = ['a','b','c','d','e','f'];
2var arr2 = arr1;  // Reference arr1 by another variable 
3arr1 = [];
4console.log(arr2); // Output ['a','b','c','d','e','f']
5