"How Old Is The Internet" Widget

Chip on 23 November 2008 | No comments

The Internet appeared in 1983. More detailed discussions on this subject are outside the scope of this article. We will learn how to create a JavaScript widget showing how old is the internet. First of all, we need to write a prototype function of a date. As the JavaScript code is wrapping a bit weird [...]

JavaScript

Numerical Integration Using JavaScript

Chip on 21 May 2008 | 4 comments

Instructions Use * to indicate multiplication: Type 4*x for 4x; Use ^ to indicate powers: Type 4*x^3 for 4×3; 12*x^-6 for 12x−6. Use parentheses to delimit the argument of a function; i.e., type sin(x) rather than sin x. Use parentheses to define the scope of an operation: For example, type 4*x*(x^2+1)^3 for 4x(x2+1)3; 4^(2*x+1) for [...]

JavaScript

JavaScript Terminal Tutorial

Chip on 18 May 2008 | No comments

Today’s tutorial is about creating a terminal screen together with lime terminal characters in JavaScript: Let’s start with the CSS: <style type=”text/css”> textarea { background-color: #000000; color: #14FC03; border: 1px solid #111; } </style> OK, the JavaScript is next: <script type=”text/javascript”> <!– var tl=new Array( “Initializing script”, “Activating engine”, “Running queries…”, “Throwing errors…”, “Catching errors”, [...]

JavaScript, Web

New JavaScript Version?

Chip on 28 April 2008 | No comments

Talking about JavaScript 1.7, 1.8 and 1.9 before we get to 2.0 Pythonizing JavaScript Planning JavaScript 1.9 Recommendations for the 4th edition of ECMA Enumaration and Object-Oriented JavaScript JavaScript Mozilla Developer’s Center New in JavaScript 1.6 New in JavaScript 1.7 New in JavaScript 1.8