Tag Archives: javascript

Using Raphael the JavaScript graphics library.

In this example, I go over a simple use of Raphael.js. It draws 4 boxes on the page and allows you to move and resize each independently. Here is the graphics library (licenses under the MIT license): https://dmitrybaranovskiy.github.io/raphael/ Here is my code on GitHub. The basic gist of it is to initialize the primary Raphael object and apply it to the page. After that you create the boxes you want … Continue reading

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Javascript & HTML: Async Communication Prototype

In this article I go over an asynchronous communication prototype I had made in straight Javascript that you use to POST to a server script and pass along the response to a Javascript function specified by the initial call to the prototype. The main benefit here is that you don’t need a full page refresh, which is great for implementing web interfaces that have an application feel to them. It … Continue reading

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Solid Basic Javascript Input Validation

Here is a simple yet pretty powerful and easy to use way to do validation on HTML form text boxes and text areas and similar controls. It checks to make sure required form field have *something* in them before allowing processing to continue. It’s a good simple way to add some basic validation to prevent trusted individuals from forgetting to fill out required fields. This is generally useful for internal … Continue reading

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