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To keep our tests fast and easily repeatable, it makes sense to create many integration tests and fewer full end-to-end tests. In this lesson, we’ll s 阅读全文
posted @ 2018-05-25 20:59
Zhentiw
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React based applications often use controlled inputs, meaning the input event leads to the application code setting the value of the very input we’re 阅读全文
posted @ 2018-05-24 21:23
Zhentiw
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In this lesson, we’ll add tests that finds a focused input. We’ll use Chrome’s dev tools from inside the Cypress runner to inspect the element and upd 阅读全文
posted @ 2018-05-24 21:10
Zhentiw
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Adding Cypress to a project is a simple npm install away. We won’t need any global dependencies beyond node and npm to get started with Cypress. In th 阅读全文
posted @ 2018-05-24 20:51
Zhentiw
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Latest Javascript features, not supported by all broswers, but can use with babel. # try-catch-finally, Promise finally: # Regex: 1. Lookbehind: 2. Lo 阅读全文
posted @ 2018-05-21 20:44
Zhentiw
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When the element has empty content, you might want to display some text to idicate the compoent is loading... 阅读全文
posted @ 2018-05-21 16:15
Zhentiw
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In this lesson, you will learn how to statically type variables in Python 3.6 Static typing can help you avoid errors when consumers of your variables 阅读全文
posted @ 2018-05-21 02:15
Zhentiw
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Values assigned with let and const are seen everywhere in JavaScript. It's become common to hear them explained like so: "const creates an constant (i 阅读全文
posted @ 2018-05-21 02:11
Zhentiw
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function solution( tags = ['ul', 'ol']) { const [uls, ols] = tags.map(tag => Array.from($(`${tag}`))); const [logUl, logOl] = tags.map(tag => new Logg 阅读全文
posted @ 2018-05-17 05:02
Zhentiw
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JavaScript provides primitive types and means of processing those. However, those are not enough. Real data must somehow come into the program and dat 阅读全文
posted @ 2018-05-15 21:59
Zhentiw
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