June 1997
Intermediate to advanced
506 pages
14h 29m
English
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JavaScript
JavaScript, originally known as LiveScript, is a programming language that Netscape developed to make animation and other forms of interaction more convenient. JavaScript programs reside in HTML files, usually surrounded by both <script> tags (so that they will be recognized by JavaScript-enabled browsers) and HTML comment tags (so that they will be ignored by browsers that do not understand JavaScript).
Netscape’s JavaScript allows HTML files to command the browser. JavaScript programs can create new windows, fill out fields in forms, jump to new URLs, process image maps locally, change the HTML content of the HTML page itself, compute mathematical results, and perform many other functions.
JavaScript is the native language of Netscape’s web browser. For this reason, JavaScript has many functions specifically designed to modify the appearance of web browsers: JavaScript can make visual elements of the web browser appear or disappear at will. JavaScript can make messages appear in the status line of web browsers. Some of the earliest JavaScript applications displayed moving banners across the web browser’s status line.
Because JavaScript programs tend to be small functions that tie together HTML files, GIFs, and even other programs written in JavaScript, many people call JavaScript a “scripting language.” But JavaScript is a full-fledged general-purpose programming language, exactly like every other programming language. You could write an accounts receivable system ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.