logic-expression-parser v0.1.2

parser

tnpm install

var parser = require('../index');
var ast = parser.parse('2>1&&3<5&&a>9');

console.log(parser.evaluate(ast,{a:2}));//false
console.log(parser.evaluate(ast,{a:11}));//true

console.log(parser.getVariable(ast));//['a']