Internal Iteration Example

by drazen_nis

JavaScript

var characters = ['a', 'b', '2', 'c', '4'];
var uppercaseResult = characters
    .filter(function(value) {
        return value.match(/[a-zA-Z]/);
    })
    .map(function(value){
        return value.toUpperCase();
    });
                
console.log(uppercaseResult);
// prints in JS Console: ["A", "B", "C"]