JavaScript Arrays

var dogs = ["Bulldog", "Beagle", "Labrador"];
var dogs = new Array("Bulldog", "Beagle", "Labrador");

alert(dogs[1]);             # access value at index
dogs[0] = "Bull Terrier";    # change the first item

for (var i = 0; i < dogs.length; i++) {     # parsing array
    console.log(dogs[i]);
}

dogs.toString();                        # convert to string
dogs.join(" * ");                       # join: "Bulldog * Beagle * Labrador"
dogs.pop();                             # remove last element
dogs.push("Chihuahua");                 # add new element to the end
dogs[dogs.length] = "Chihuahua";        # the same as push
dogs.shift();                           # remove first element
dogs.unshift("Chihuahua");              # add new element to the beginning
delete dogs[0];                         # change element to undefined
dogs.splice(2, 0, "Pug", "Boxer");      # add elements (pos, how many to remove, list)
var animals = dogs.concat(cats,birds);  # join two arrays
dogs.slice(1,4);                        # elements from [1] to [4-1]
dogs.sort();                            # sort string alphabetically
dogs.reverse();                         # sort string in descending order
x.sort(function(a, b){return a - b});   # numeric sort
x.sort(function(a, b){return b - a});   # numeric descending sort

concat, copyWithin, every, fill, filter, find, findIndex,
forEach, indexOf, isArray, join, lastIndexOf, map, pop,
push, reduce, reduceRight, reverse, shift, slice, some,
sort, splice, toString, unshift, valueOf