Tombstone.js is a JavaScript propositional logic library. See my blog post for more information.
Download Tombstone.js from the releases page and include it:
<script type="text/javascript" src="tombstone.min.js"></script>Create a new Statement:
var statement = new tombstone.Statement('P & Q');
// pass arguments
var ret1 = statement.evaluate({'P': true, 'Q': false}); // false
var ret2 = statement.evaluate({'P': true, 'Q': true}); // true
// make a Markdown-formatted truth table
var truth = statement.table();
// | P | Q | P & Q |
// | :---: | :---: | :---: |
// | true | true | true |
// | true | false | false |
// | false | true | false |
// | false | false | false |