Today we are happy to announce the next major release of Jest - version 24! It's been 4 months since the last minor release, and 8 months since Jest 23, so this upgrade is a big one, with something for everyone! Highlights include built-in support for TypeScript by upgrading the Jest internals to Babel 7, fixing some long-standing issues with missing console output and performance issues when comp
The Page Object pattern is certainly the most utilized pattern when it comes to web application test automation. It is a powerful method for reducing code maintenance costs and code duplication which leads to increase of the re-usability and robustness. All this benefits become apparent when you're testing complex large scale applications. And we all know that large and complex applications only t
27 October, 2018 The Three Types of Performance Testing Written by Harry Roberts on CSS Wizardry. Table of Contents Independent writing is brought to you via my wonderful Supporters. Proactive Reactive Passive What This Means for Developers What This Means for the Business A lot of companies—even if they are aware that performance is key to their business—are often unsure of how, when, or where pe
Today we’re launching Test262 Report to provide JavaScript developers with up-to-date information on the state of new and existing language features across implementations. Test262 Report is based on daily runs of Test262, the ECMA-262 (“ECMAScript” or “JavaScript”) test suite, in nightly builds of JavaScript engines, and visualizes at-a-glance status of feature implementation progress. Taking a l
2018-October-29 Storybook 4.0 is our first major-version update in over a year! Key improvements include: Build tools Webpack 4 #3148 Babel 7 #3746 View layers Storybook for Ember #4237 Storybook for MarkoJS #3504 Storybook for Mithril #3244 Storybook for HTML snippets #3475 Storybook for Svelte #3770 Storybook for Riot #4070 Mobile Mobile device view: toggling stories panel with ☰ button #3337 Re
JavaScript の経験のレベルとしては、ある程度 ES2015+ のシンタックスに慣れていることを想定していますが、ES2015+ の実用的な書き方に慣れていない人にとっても有益な本であると思います。なぜなら async / await , array.from() , HOF = High Order Function といったモダンな書き方を積極的に取り入れているからです。
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