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摘要: -0 0 // true 阅读全文
posted @ 2020-03-22 02:19 Zhentiw 阅读(245) 评论(0) 推荐(0)
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posted @ 2020-03-22 02:16 Zhentiw 阅读(149) 评论(0) 推荐(0)
摘要: const app = document.getElementById('app'); app.innerHTML = ` <h1>JavaScript DOM</h1> <ul> <li>1</li> </ul> `; const ul = app.querySelector('ul'); ul. 阅读全文
posted @ 2020-03-21 20:43 Zhentiw 阅读(165) 评论(0) 推荐(0)
摘要: const app = document.getElementById('app'); app.innerHTML = ` <h1>JavaScript DOM</h1> `; const div = document.createElement('div'); const span = docum 阅读全文
posted @ 2020-03-21 20:37 Zhentiw 阅读(176) 评论(0) 推荐(0)
摘要: DocumentFragment can create virtual dom tree. It can helps to avoid layout reflow.. problems Code has profermance problem: const data = ['Earth', 'Fir 阅读全文
posted @ 2020-03-20 22:15 Zhentiw 阅读(110) 评论(0) 推荐(0)
摘要: We will create animated Content Placeholder as React component just like Facebook has when you load the page. Key points: 1. For each elements on the 阅读全文
posted @ 2020-03-17 19:03 Zhentiw 阅读(157) 评论(0) 推荐(0)
摘要: import './assets/css/style.css'; const app = document.getElementById('app'); app.innerHTML = '<h1>JavaScript DOM</h1>'; // <html> console.log(document 阅读全文
posted @ 2020-03-17 03:34 Zhentiw 阅读(131) 评论(0) 推荐(0)
摘要: 举个例子: “把这份报告复印一下”。 5W2H Who: 小张 What:复印报告 How: 用高品质复印 When:下班前 Where: 总经理办公室 How many:2份 Why:给客户做参考 整理后: “请你将这份报告复印2份,在下班前送到总经理办公室交给总经理。请留意复印的质量,总经理要带 阅读全文
posted @ 2020-03-16 03:51 Zhentiw 阅读(1249) 评论(0) 推荐(0)
摘要: // Definition const Endo = run => ({ run, concat: other => Endo(x => other.run(run(x))) }); Endo.empty = () => Endo(x => x); // Ex1: // const classToC 阅读全文
posted @ 2020-03-15 21:12 Zhentiw 阅读(221) 评论(0) 推荐(0)
摘要: Normally when we use 'map', we do the transform base on the output. 'contramap' can do the transform base on the input, which means, before the orgina 阅读全文
posted @ 2020-03-15 21:11 Zhentiw 阅读(174) 评论(0) 推荐(0)
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