![]() Sometimes you want your function to pause execution for a fixed amount of seconds or milliseconds. Though JavaScript does not have a sleep function, due to the introduction of Promises and async/await in ES2018, we can end up causing the function to sleep. So we don't really have a full indeterminate situation, just a partial one. Learn how to make your function sleep for a certain amount of time in JavaScript. However, JavaScript absolutely guarantees that the piece of code after the sleep will never execute before the specified time. Spoiler: JavaScript never really "pauses". Unfortunately, it's because timers work in JavaScript, and in general, event loops. The more readable and clean way to delay execution in JavaScript is to create your own sleep () function. In this post, I'll discuss how you can achieve that and what it really means to "pause" or "sleep" in JavaScript. Unico parametro della nostra funzione sleep è la durata della pausa espressa in secondi. One of those features are Promises, which are probably the most widely used feature in JavaScript after ES5 was released.īut one of the things which JavaScript misses is a way to "pause" execution for a while and resume it later. More and more ideas and features are being ported from different languages and being integrated in JavaScript. And it hasn't been the same since ES5 was released.
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