JSMExtr - JavaScript source code Metrics Extractor

A tool that parses HTML or JavaScript files and inspects all JavaScript code found. Outputs several metrics for the analyzed source.

Scripts

• r-readable-metrics

• extract-all-metrics-from-js-ast

• filter-function-metrics-only

• parse-js-string-to-ast

• extract-js-ast-from-js-file

• extract-js-asts-from-html-file

• extract-script-tags-from-html-file

• javascript-code-files-walker

Running it on your own

Requirements

All code is written in JavaScript and runs on the NodeJS platform.

• Install Node > 6
• Upgrade NPM to latest: npm install -g npm@next
• Install Python 2.7.x
• Install Gcc and G++ (or MS VC++ Build tools, if windows)

Running

Download and process all dependencies:

npm install

Try the sample script:

npm start

The sample script takes metrics from some files located at the test/demo folder. You can (and should) change that to any path containing HTML and/or JS files. Take a look at the script to learn how to do that. It should be straightforward.

Tests

The test scripts is a very good source on the specific behavior of each function. To run it, use:

npm test

The test framework used is Mocha, mainly due to its capacity to test server-side code seamlessly.

Other

This repo follows the angular commit message style.