expressionify/lib/utils.js

Simple node.js expression parser and evaluator using shunting-yard and reverse polish notation algorithms

'use strict';

exports.isObject = function(object) {
	var type = typeof object;
	return type === 'function' || type === 'object' && !!object;
};

exports.extend = function(destanation, source) {
	for (var key in source) {destanation[key] = source[key];}
	return destanation;
};

exports.peek = function(a) {
	return a[a.length - 1];
};