JSFiddle - React, Tailwind, and code Playground
JavaScript
arr2 = ['agg', 45, 'ghj', ' ', 9999, 12, 'aa', 'bb'];
function returnAlphanumeric(array){
for (var i=0; i<array.length; i++){
console.log(i, array, array[i])
if (typeof array[i] != 'number'){
array.splice(i, 1);
}
}
console.log('Your new array is: '+array);
}
returnAlphanumeric(arr2);