remove ull from array code example

Example 1: php array remove empty values

<?php
$arr = array('1', '', '2', '3', '0');
// Incorrect:
print_r(array_filter($arr));
// Correct:
print_r(array_filter($arr, 'strlen'));
//Custom
print_r(array_filter($arr, function ($val) {if ($val > 0) {return true;} else {return false;}}));

Example 2: remove null from array javascript

let array = [0, 1, null, 2, 3];

function removeNull(array) {
return array.filter(x => x !== null)
};

Example 3: 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);