clean array js 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: javascript clear array

let aray = [1,2,3,4,5,6,7,8,9,10];

//as with most coding there are several ways you can do anything
//see whichever works best for your scenario

//set the array to equal a blank array
array = [];

//set the array's length to 0
array.length = 0;

//using splice, starts at index 0 & removes everything up to and including that last index 
array.splice(0, array.length);

//map or loop through and shift() or pop();
//goes through the array one at a time and removes the last item each time
array.map( () => array.pop());

//goes through the array one at a time and removes the first item each time
array.map( () => array.shift());

Example 3: js delete all array items

A.splice(0,A.length)

Example 4: how to clear array in javascript

A.length = 0

Example 5: js delete all from array

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