Book Image

Web Developer's Reference Guide

By : Joshua Johanan, Talha Khan, Ricardo Zea
Book Image

Web Developer's Reference Guide

By: Joshua Johanan, Talha Khan, Ricardo Zea

Overview of this book

This comprehensive reference guide takes you through each topic in web development and highlights the most popular and important elements of each area. Starting with HTML, you will learn key elements and attributes and how they relate to each other. Next, you will explore CSS pseudo-classes and pseudo-elements, followed by CSS properties and functions. This will introduce you to many powerful and new selectors. You will then move on to JavaScript. This section will not just introduce functions, but will provide you with an entire reference for the language and paradigms. You will discover more about three of the most popular frameworks today—Bootstrap, which builds on CSS, jQuery which builds on JavaScript, and AngularJS, which also builds on JavaScript. Finally, you will take a walk-through Node.js, which is a server-side framework that allows you to write programs in JavaScript.
Table of Contents (22 chapters)
Web Developer's Reference Guide
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
9
JavaScript Expressions, Operators, Statements, and Arrays
Index

Selectors


As the name suggests, selector attributes are used to select various elements of HTML. The selector attributes basically support the CSS selectors.

Selectors begin with a $ sign followed by parentheses: $()

Element selectors

Element selectors select elements using their name. For example, if a paragraph is written in the tags <p>, you can select this paragraph using its name, that is, p:

$("p")

Parameters

The name of the element to be chosen is passed as a parameter.

Returns

The element selectors returns the element.

Description

The element selectors select elements using their name. For example, if a paragraph is written in the tags <p>, you can select this paragraph using its name.

ID selectors

ID selectors select elements using their ID. Each element of the HTML can have its own identifying ID and it can be accessed using #. For example, to access the element with the ID text, we can use the following syntax:

$("#text")

Parameters

The pound sign (or number sign) or a hash sign...