![]() While our first example may fit in with more traditional timepieces, it also features an ultra-modern look. Let’s have a look at some code snippets that you can use to bring time-related functionality to your projects. Plus, they can play an important role in the overall user experience. Whether you’re displaying the elapsed time of an event such as an online quiz or the amount of days until a big product launch, these items can add a bit of excitement. However, that’s only genuinely useful in certain situations, considering our device screens already display the basics.Īn area where time really shines is in counting up or down. Sure, a traditional clock can add to the aesthetic of a website or app. But it’s not at all limited to what we typically wear on our wrist or hang on the wall. Installs fake timers at January 1st 2017 and fakes setTimeout and process.nextTick only: var clock = sinon.The act of displaying time is quite popular on the web. Please refer to the lolex documentation for more information. You would have to call either clock.next(), clock.tick(), nAll() or nToLast() (see example below). Important note: when faking nextTick, normal calls to process.nextTick() would not execute automatically as they would during normal event-loop phases. To define which methods to fake, please use config.toFake. Please refer to the fakeTimers.install documentation for the full set of features available and more elaborate explanations. The options are basically all of those supported by the install() method of our fake-timers library, with the sole exception of global. This is useful if you use JSDOM along with Node. ![]() ![]() config.global - Object - use global instead of the usual global object.When used in conjunction with config.toFake, it will only work if 'setInterval' is included in config.toFake. config.shouldAdvanceTime - Boolean - tells lolex to increment mocked time automatically based on the real system time shift (default: false).You could, however, still fake nextTick by providing it explicitly By default lolex will automatically fake all methods except process.nextTick. config.toFake - String - an array with explicit function names to fake.config.now - Number/Date - installs lolex with the specified unix epoch (default: 0).var clock = eFakeTimers(config) Īs above, but allows further configuration options. ![]() You can also pass in a Date object, and its getTime() will be used for the starting timestamp. var clock = eFakeTimers(now) Īs above, but rather than starting the clock with a timestamp of 0, start at the provided timestamp now. ![]() Starts the clock at the UNIX epoch (timestamp of 0). ) įake timers API var clock = eFakeTimers() Ĭauses Sinon to replace the global setTimeout, clearTimeout, setInterval, clearInterval, setImmediate, clearImmediate, process.hrtime, performance.now(when available) and Date with a custom implementation which is bound to the returned clock object. Set of features (Sinon uses it under the hood) and was previously extracted from Sinon.JS. Or Date.now() (if supported by the browser).įor standalone usage of fake timers it is recommended to use fake-timers package instead. Sinon.JS can overwrite the global functions with to allow you to more easilyįake timers provide a clock object to pass time, which can also be used to control Date objects created through either new Date() Fake timers are synchronous implementations of setTimeout and friends that ![]()
0 Comments
Leave a Reply. |