摘要：
In this lesson we'll explore using setState to synchronously update in componentDidMount. This allows for us to use getBoundingClientRect or other syn 阅读全文
posted @ 2018-03-05 20:59
Zhentiw
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In this lesson we are going to use CSS variables to keep our application's colors consistent. This includes defining the variables inside our the pseu 阅读全文
posted @ 2018-02-27 22:07
Zhentiw
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The main reason you want to do I"nlining images with SVG and data URIs" is to reduce http request. If you doing "Inlining images with SVG and data URI 阅读全文
posted @ 2018-02-26 20:12
Zhentiw
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// Asynchronous iteration --> Symbol.asyncIterator async function main() { const syncIterable = [ Promise.resolve('a'), Promise.resolve('b'), ]; for await (const x of sync... 阅读全文
posted @ 2018-02-25 01:47
Zhentiw
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In this lesson, you will learn how to implement pytest fixtures. Many unit tests have the same resource requirements. For example, an instantiated obj 阅读全文
posted @ 2018-02-22 22:04
Zhentiw
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Body with background image and gradient Body with elaborate background using only CSS Using CSS background images for conditional image display Using 阅读全文
posted @ 2018-02-22 21:10
Zhentiw
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'cover': The smaller axies of image (x axies) should match smaller axies (x axies) of container. So some part of image might be cut off. 'container': 阅读全文
posted @ 2018-02-22 21:01
Zhentiw
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In this lesson, I use Enzyme and Jest's Snapshot functionality to write an integration test for a component called CounterConsumer that consumes the R 阅读全文
posted @ 2018-02-22 01:21
Zhentiw
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In this lesson, I use Enzyme and Jest to unit test a Counter Render Prop component. Writing integration tests are perfect for components that consume 阅读全文
posted @ 2018-02-22 01:15
Zhentiw
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Take few examples: Full size image: The problem for that is it overflow when the screen size is smaller than the image size. (BAD) width: 100%: The pr 阅读全文
posted @ 2018-02-21 22:09
Zhentiw
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