Here's what that looks like in practice: Let's compare promises to callbacks. You're likely to have met with callbacks before, JavaScript is full of them. let theFuture = function (callback) { setTimeout(callback, 5000) } theFuture(() => { console.log("It is now 5 seconds...
Callbacks Object-Oriented JS and Prototypal Inheritance Constructors Prototypes Prototypal Inheritance Built-In Constructors Bugs and Error Handling New ES6 stuff TODO: Add 8. Useful Libraries (LoDash, jQuery), 9. Javascript in the browser, 10. NodeJS 1. Basics Everything in JS is either an ...
问ModuleNotFoundError:没有名为“tf_explain”的模块EN配置如下： INSTALLED_APPS = [ 'simpleui'...
Vlad Tanasie 7,201 Points Please explain the last example with the CPS Why is the result 65 and what does the(n)argument in each callback refer to? The callback or the numbers that are given as arguments? It is melting my non-mathematical brain. ...
class Promise { constructor(executor) { this.state = 'pending'; this.value = undefined; this.reason = undefined; this.callbacks = []; const resolve = (value) => { if (this.state === 'pending') { this.state = 'fulfilled'; this.value = value; this.callbacks.forEach((callback) =...