JavaScript Tutorials — Basics

The abs() method of math object is used to get the absolute value of a number.

An Array is used to store a number of values (called as elements) in order with a single variable. Can be created using javascript array object constructor. new Array(size) new Array(element0, element1, ..., elementN)

JavaScript is not a full-blown object oriented programming language, such as Java, but it is designed on a simple object-based model. An object is a construct with properties that contain JavaScript variables or other objects.

The encodeURI is used to encode a Uniform Resource Identifier (URI) by replacing each instance of certain characters by one, two or three escape sequences representing the UTF-8 encoding of the character.

The UTC() method returns the number of milliseconds in a Date object since January 1, 1970, 00:00:00, universal time.

The eval function is used to execute JavaScript source code. Syntax

A conditional statement is a set of commands and the commands execute if a specified condition is true. There are two conditional statements in JavaScript : if...else and switch.

The splice() method is used to remove old elements and add new elements to an array. It changes the content of the array.

In today's tutorial we are going to learn how to create a small web application that will display an RSS feed on a web page using jQuery and PHP. To do this we are going to use jQuery AJAX functionality to easily get the data from a PHP proxy and display it on the web page.

In this tutorial we are going to learn how to use the Geolocation API to get your current latitude and longitude, from these results we can then connect to the Google Maps API to display your location in the browser.