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);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);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());Copyright © 2021 Codeinu
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