Array Methods
concat() /* - Join several arrays into one */
indexOf() /* - Returns the first position at which
a given element appears in an array */
join() /* - Combine elements of an array into
a single string and return the string */
lastIndexOf() /* - Gives the last position at which
a given element appears in an array */
pop() /* - Removes the last element of an array */
push() /* - Add a new element at the end */
reverse() /* - Sort elements in a descending order */
shift() /* Remove the first element of an array */
slice() /* - Pulls a copy of a portion of
an array into a new array */
sort() /* - Sorts elements alphabetically */
splice() /* - Adds elements in a specified
way and position */
toString() /* - Converts elements to strings */
unshift() /* - Adds a new element to the beginning */
valueOf() /* Returns the primitive value
of the specified object */