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Swappable Heading example
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| class SwappableHeading { | |
| constructor(element, headings = []) { | |
| this.element = element; | |
| this.headings = headings; | |
| this.current = 1; | |
| } | |
| async swap() { | |
| while (true) { | |
| await this.wait(2000); | |
| await this.clear(); | |
| await this.type(this.nextHeading()); | |
| } | |
| } | |
| async type(text) { | |
| while (text.length) { | |
| await this.append(text[0]); | |
| text = text.substring(1); | |
| } | |
| } | |
| text() { | |
| return this.element.innerHTML; | |
| } | |
| append(text) { | |
| this.element.innerHTML += text; | |
| return this.wait(100); | |
| } | |
| async clear() { | |
| while (this.length()) { | |
| await this.backspace(); | |
| } | |
| } | |
| backspace() { | |
| this.element.innerHTML = this.text().slice(0, -1); | |
| return this.wait(100); | |
| } | |
| nextHeading() { | |
| let heading = this.headings[this.current - 1]; | |
| this.increment(); | |
| return heading; | |
| } | |
| empty() { | |
| return this.length() === 0; | |
| } | |
| length() { | |
| return this.text().length; | |
| } | |
| increment() { | |
| this.current++; | |
| if (this.current > this.headings.length) { | |
| this.current = 1; | |
| } | |
| } | |
| async wait(milliseconds) { | |
| return new Promise(resolve => { | |
| setTimeout(resolve, milliseconds); | |
| }); | |
| } | |
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!doctype html> | |
| <link href="https://unpkg.com/tailwindcss@^1.0/dist/tailwind.min.css" rel="stylesheet"> | |
| <section class="bg-gradient-to-br from-blue-500 to-blue-700 h-screen grid place-items-center"> | |
| <h1 class="font-bold text-white text-6xl uppercase tracking-widest">Laracasts</h1> | |
| </section> | |
| <script src="/js/app.js"></script> | |
| <script> | |
| new SwappableHeading( | |
| document.querySelector('h1'), | |
| ['It', 'Should', 'Work'] | |
| ).swap(); | |
| </script> |
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