JavaScript: simple line graph on canvas element

Simple line graph demo code.

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JavaScript: debugging with embedded Rhino in Eclipse

The Eclipse JavaScript Development Tools allow step-through-debugging of JavaScript files using a provided Rhino instance. The Wiki describes how to utilise Eclipse plugins to connect your own embedded Rhino context to Eclipse.

Versions: Java 7; Rhino 1.7R4; Eclipse Juno (4.2) SR1 (Eclipse IDE for Java EE Developers).

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JavaScript: debugging with embedded Rhino

Mozilla's Rhino engine includes a step-through debugger. It is relatively easy to embed this in your own Java application.

Versions: Rhino 1.7R4 on Java 7.

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Dojo: bootstrapping in an embedded Rhino context

Dojo supports Mozilla's Rhino engine for things like headless DOH tests and builds. This post demonstrates how to bootstrap Dojo using an embedded context.

This information pertains to Dojo 1.7.2, Rhino 1.7R2 and Java 6. Knowledge of JavaScript, Dojo and Java is assumed.

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JavaScript: AMD module dependency analysis with the Java Rhino engine

The Asynchronous Module Definition (AMD) API provides powerful modularization options to JavaScript developers. But this introduces its own problems when it comes to dependency management. As this post demonstrates, Mozilla's Rhino engine offers developers a means to analyze these dependencies.

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Dojo: adding your own loader plugins

define(["dojo/text!./path/some.txt"], function(textData) {

Dojo's AMD loader has some useful contextual loading features. Note the exclamation mark in the dependency. dojo/text! can be used to load character data; dojo/has! can be used to load different modules based on environment.

Writing your own plugin is relatively trivial.

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Dojo: mocking dependencies with DOH

This post demonstrates a way to use the Dojo 1.7 AMD loader to provide mock/stub/fake/dummy artefacts in place of the defined dependencies.

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Dojo: version 1.7 and the AMD loader

Along with a few other JavaScript libraries, Dojo is making the transition to the Asynchronous Module Definition (AMD) API. This post presents a few minimal files written to make use of it.

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JavaScript: validating UTF-8 string lengths in the browser

Let's take a JavaScript string: "€100". This is going to be sent from a browser input box and stored in a web server's database. The database is using the UTF-8 encoding and the constraint on the column is CHAR(4). Spot the problem?

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