Constraint library for JavaScript
JavaScript HTML CSS



For documentation or the full ConstraintJS API, visit


Building from source

If you'd rather build from this repository, you must install node.js and Grunt. Then, from inside the constraintjs source directory, run:

npm install .

The CJS Library will appear in the build/ directory.

Notes on Development

Make changes to the files in src/ instead of build/. After you change a file, be sure to run grunt to re-build the files in build/. By default, the sourcemap generated for build/cjs.min.js links to the build/cjs.js file. To build a sourcemap that links back to the original src/ files (significantly more useful for development), change grunt in the instructions above to grunt dev:

npm install .
grunt dev