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The interactive pseudo-classes for links (and buttons) allow us to make sure the user knows what elements on the page are interactive and that they ca 阅读全文
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Run Jest Watch Mode by default locally with is-ci-cli In CI, we don’t want to start the tests in watch mode, but locally we normally want to run the t 阅读全文
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Setup an afterEach Test Hook for all tests with Jest setupTestFrameworkScriptFile With our current test situation, we have a commonality between most 阅读全文
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Most of time, when we want to test function call inside a promise, we can do: It is important to call 'done()', otherwise, the code won't call the pro 阅读全文
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WebAssembly is great for targeting performance bottlenecks in the browser. Now with node-loader, we can do the same on the server through Node.js Whil 阅读全文
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Transpile Modules with Babel in Jest Tests Jest automatically loads and applies our babel configuration. However, because our project takes advantage 阅读全文
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It can be incredibly frustrating to spend a few minutes filling out a form only to accidentally lose all of your progress by the browser closer, the p 阅读全文
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Downloading and saving a file is a common scenario when building out your web application. Using Express, you can either trigger a download from an ex 阅读全文