remove empty array in array javascript code example

Example 1: Javascript remove empty elements from array

var colors=["red","blue",,null,undefined,,"green"];

//remove null and undefined elements from colors
var realColors = colors.filter(function (e) {return e != null;});
console.log(realColors);

Example 2: empty array js

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

Example 3: javascript empty array

if (array === undefined || array.length == 0) {
    // array empty or does not exist
}

Example 4: empty array javascript

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

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