remove undefined from array js code example
Example 1: remove undefined from array javascript
var data = [42, 21, undefined, 50, 40, undefined, 9];
data = data.filter(function( element ) {
return element !== undefined;
});
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"];
var realColors = colors.filter(function (e) {return e != null;});
console.log(realColors);
Example 4: remove undefined from array
var data = [42, 21, undefined, 50, 40, undefined, 9];
data = data.filter(function( element ) {
return element !== undefined;
});
data = data.filter( Number );
data = data.filter( Boolean );