04.ExtraCredit.js

/* * * * * * * * * * * * * * * * * * * * * *
 *     CAVEMAN JS PT 4: EXTRA CREDIT       *
 * * * * * * * * * * * * * * * * * * * * * */

// Looking for more useful JavaScript tools to implement? These are  
// harder than the ones that came before, but I know you can do it.


/**  Array.prototype.splice  **/
// Modifies an array by removing a number of elements and 
// inserting any number of new ones.
var splice = function(array, start, count) {

};


/**  String.prototype.split  **/
// The opposite of `join`, returns an array by breaking up a string 
// using a separator. The separators are not included in the array.
var split = function(string, separator) {

};


/**  Math.sqrt  **/
// How *do* you find the square root of a number if you don't have `Math`?
var sqrt = function(number) {

};


/**  Date.parse  **/
// A little function that takes a date string in a variety of formats
// and returns the number of milliseconds since January 1, 1970.
var parse = function(date) {

};