JS console lesson : array filtering

array_filter.js

// filter words with a RegEx

var startsWithA = new RegExp(/^a/i); // filter by first letter A

var arr  = ['Apple','avocado','Banana','Cherry'];

var filtered = arr.filter(function(item){
    return startsWithA.test(item);
});


var nonAlpha = new RegExp('[^a-zA-Z\d\s:]'); // filter non-Alpha chars

var arr2  = ['Apple','avocado','Banana','Cherry'];

var filtered2 = arr.filter(function(item){
    return !nonAlpha.test(item);
});

console.log(filtered2);