Javascript For Beginners: Your Guide For Learning Javascript Programming in 24 Hours

By John Maldonado

Welcome to the Wonderful World of JavaScript

If you have experience with web programming particularly working with HTML, then the next step is to learn JavaScript. With the use of scripts, you can give your web pages an added punch. You will also make your web pages a lot more flexible and interactive.
You will also transform static HTML web pages allowing them to validate any user input. You will also learn how to adapt your code across several different web browsers. Eventually as you learn the ropes of this programming language you will also know how to integrate other related technologies such as ActiveX components, Java applets, plugins, and others.

But what is JavaScript?
JavaScript (we'll call it JS for short) is one of the many dynamic programming languages that you can find today. It is lightweight – which means it doesn't require a lot of resources to get it running in your computer. The scripts that you write with this programming language will become one of the most common parts of many web pages.
Another thing that you should know is that it is an interpreted computer programming language. That means the code that you will write won't need to be "translated" or compiled into machine code by a compiler. In other words, it doesn't need to be converted from human readable code to machine language.

• Language: English
• Publisher: Lito Publishing
• Release date: Mar 18, 2019
• ISBN: 9781386161462

Book preview

Table Of Contents

Chapter 1: JavaScript – Basics and Preliminary Info

Chapter 2: How to Enable JavaScript in Your Browser

Chapter 3: The Tools You Need to Get Started

Chapter 4: Writing Your First JavaScript Code

Chapter 5: JavaScript Syntax and Code Structure

Chapter 6: Using Variables in JavaScript

Chapter 7: Manipulating Variable Values

Chapter 8: Constants and Reserved Names

Chapter 9: Data Types

Chapter 1: JavaScript – Basics and Preliminary Info

Welcome to the Wonderful World of JavaScript

If you have experience with web programming particularly working with HTML, then the next step is to learn JavaScript. With the use of scripts, you can give your web pages an added punch. You will also make your web pages a lot more flexible and interactive.

You will also transform static HTML web pages allowing them to validate any user input. You will also learn how to adapt your code across several different web browsers. Eventually as you learn the ropes of this programming language you will also know how to integrate other related technologies such as ActiveX components, Java applets, plugins, and others.

It should be obvious at this point that you should at least know enough about HTML before jumping into JavaScript programming.

But what is JavaScript?

JavaScript (we’ll call it JS for short) is one of the many dynamic programming languages that you can find today. It is lightweight – which means it doesn’t require a lot of resources to get it running in your computer. The scripts that you write with this programming language will become one of the most common parts of many web pages.

Another thing that you should know is that it is an interpreted computer programming language. That means the code that you will write won’t need to be translated or compiled into machine code by a compiler. In other words, it doesn’t need to be converted from human readable code to machine language.

A Bit of History

JavaScript was launched in the year 1995 with the use of Netscape 2.0 Back then it was called LiveScript. Well, they changed the name of this programming language in large part because of the huge excitement that was caused back then by Java (a complete programming language).

Now, the general purpose core of this programming language is embedded in the extant web browsers back then. The standard version of this language’s core is defined by ECMA-262 Specification as the following:

It is open

It is integrated with and is complementary to HTML (i.e. it works with HTML code)

It is cross platform

It should be cross platform

It should be integrated with Java

It should also be complimentary with the Java programming language

It is used for making applications that are network centric

It is an interpreted programming language

So, Why JavaScript?

There are a few good reasons why people should learn how to write code with JavaScript. For one thing, there will be fewer server interactions. For instance, you can use it to validate any user input via the browser before sending the information that was entered to the server. This you won’t be eating up huge chunks of bandwidth and it can also reduce the total traffic heading

Reviews for Javascript For Beginners

[daniel wilkinson · Rating: 5 out of 5 stars]

Nice and easy intro - good for me. Fast read. Thanks!

[scorpio mamba · Rating: 1 out of 5 stars]

Very general with no actual scripts details. More examples in real java scripts are needed

[Sasha L · Rating: 2 out of 5 stars]

A little bit of some tiny info about JS (perhaps it's not the full version of the book). After reading one can do nothing in JS but print an alert "Hi there".
The author says: you cannot change the type of data after assigning value to a variable. But it can be changed without an error message.
Sometimes the language of the book is so clumsy that it looks like the author is not a native English speaker.