Javascript For Beginners: Your Guide For Learning Javascript Programming in 24 Hours
3/5
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About this ebook
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.
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Reviews for Javascript For Beginners
13 ratings3 reviews
What our readers think
Readers find this title to be a mixed bag. Some reviewers found the book to be lacking in depth and detail, with general explanations and a lack of real script examples. However, others appreciated the easy introduction and fast pace of the book. The language used by the author was sometimes clumsy, but overall it was a helpful resource for beginners.
- Rating: 5 out of 5 stars5/5Nice and easy intro - good for me. Fast read. Thanks!
- Rating: 1 out of 5 stars1/5Very general with no actual scripts details. More examples in real java scripts are needed
- Rating: 2 out of 5 stars2/5A 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.
Book preview
Javascript For Beginners - John Maldonado
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