This advanced JavaScript tool functions as a validator, debugger, and editor for both novice and experienced developers. Ajax developers can utilize the program as an Ajax editor. Additionally, it is a comprehensive DHTML editor making it easy to create, edit, and test DHTML scripts.

One of the unique features that this software has is the built-in “Functions and Variables” navigator that helps navigate through the code easily. Additionally, the software employs Intellisense to simplify the writing of error-free code, while the clipboard panel allows users to keep track of up to 30 clipboard copy actions.
The DHTML editor that comes with the First JavaScript Editor software has a highly efficient JavaScript source code formatter/beautifier that users can customize and apply any style they want. Users can input parameters and properties for different special effects, and the software can create the HTML and JavaScript code with the press of a button.
The Go to declaration feature (Ctrl + Click) helps users navigate to the line of code where a label, function, or variable is declared. Also, the context help (Shift+F1) provides access to over 2000 methods, properties, events, etc. of DHTML. Users can also access a description (with examples) of almost any object of JavaScript, HTML, CSS, and DHTML with the help of the Shift+F1 feature.
The software now highlights matching curly braces when they are used in the code. Additionally, the software has a built-in JavaScript tutorial, HTML tutorial, CSS tutorial, Ajax Tutorial, CSS reference, JavaScript reference, and HTML reference. Furthermore, the software has a large snippets library with a full collection of DHTML and JavaScript tags, attributes, statements, etc. (over 1200 in total).
Finally, the First JavaScript Editor has a built-in JavaScript Debugger, which allows users to run and debug JavaScript code one line at a time. They can add extra code on the fly or check how variables change in the program's run. Overall, the First JavaScript Editor is an excellent tool for anyone who works with JavaScript and other web technologies.
Version 5.1: Completely renew