node-expires

Simple Node.js expiration helper

Install

$ npm install expires

Usage

var expires = require('expires');

// Returns some timestamp like 1341151672247
var timestamp = expires.after('2 seconds');

// Then it can be tested for expiration
expires.expired(timestamp);  // false
setTimeout(function() {
	expires.expired(timestamp);  // true
}, 2500);

Supported Units

• "ms", "millisecond(s)"
• "sec(s)", "second(s)"
• "min(s)", "minute(s)"
• "hr(s)", "hour(s)"
• "day(s)"
• "wk(s)", "week(s)"
• "yr(s)", "year(s)"

Fractions

Also completely valid are fractional values, such as the following:

expires.after('0.5 hours');
expires.after('1/2 hours');

// A bit extreme, but still valid
expires.after('2.3/4.5 hours');