When comparing Slap vs Aptana Studio, the Slant community recommends Aptana Studio for most people. In the question“What are the best JavaScript IDEs or editors?” Aptana Studio is ranked 40th while Slap is ranked 45th. The most important reason people chose Aptana Studio is:
Aptana Studio has standalone (130.7 MB for Windows) and Eclipse-plugin versions.
Specs
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Pros
Pro First-class mouse support
Slap supports mouse keybindings even though it works inside the terminal and also through SSH.
Pro Uses desktop-like keybindings
Slap features configurable keybindings (Ctrl+S, Ctrl+Z, etc).
Pro Great terminal interface
Pro Available in standalone and Eclipse plugin versions
Aptana Studio has standalone (130.7 MB for Windows) and Eclipse-plugin versions.
Pro HTML5-aware code assist
Aptana's code assist displays which tags are supported by which browsers.
Pro Support for web projects
Aptana was specifically created for web application development. It supports a variety of languages such as HTML, CSS, JavaScript, PHP, and Ruby.
Pro Built-in terminal
Has a built-in terminal emulator from which you can run commands.
Pro Free and open source
Aptana is available for free under the GPL license with source code available on GitHub.
Pro Git integration
Aptana provides integrated support for Git to make collaboration and version control easier.
Cons
Con Requires node.js
Slap is written in JavaScript and it requires something to interpret it in a local machine. That something is node.js, but for people who don't need node, it would be a hindrance and an overkill to install node just to use a simple text editor. Furthermore, it can only be used remotely if the remote machine has node installed.
Con CLI only
Slap only runs through the terminal.
Con Many dependencies
Aptana has a couple of dependencies to keep in mind.
It is built with Java and and has some requirements for the JDK version.
Aptana requires Git, and Eclipse 3.5+ if you are installing it as an Eclipse plugin.
Con No longer updated
Language support is increasingly dated.