Answer1215

摘要： const [state, dispatch] = useReducer(reducer, initialArg, init); The third arguement 'init' is a lazy initialization which is a function. It is useful 阅读全文

摘要： MECE：Mutually exclusive collectively exhaustive， 相互独立，完全穷尽，“不重叠，不遗漏” -- 《金字塔原理》Barbara Minto 如何避免在做汇报时，逻辑层次混乱？-- MECE 如何理解，不重叠，不遗漏？ 例如：“把目标用户都列出来：男人，小 阅读全文

摘要： As a user, it can be very disorienting when the "wrong" UI is briefly shown to the user: a login link is shown to an authenticated user, or a 404 erro 阅读全文

摘要： For example, we want to show loading spinner inside our appliction component trees. Because we might trigger loading spinner anywhere inside our appli 阅读全文

摘要： When new to Reactive programming with Angular. It is easy to fall into a performance issue, which is sending multi same http request to the backend. I 阅读全文

摘要： For example we have following code: $(el).hide() // el.style.display = 'none' $(el).forEach(() => {}) foo.hide() We want $(el).hide() replace with: el 阅读全文

摘要： Are you using z? Greatly speed up your file system traversal and say goodbye to finder. Install: brew install z 2. Go the github: https://github.com/r 阅读全文

摘要： For example we want to just conver a VariableDeclaration to Foo.bar.otherBaz("one", 2); We can use Babel template to do that: export default function( 阅读全文

摘要： Layout reflow Layout reflow can be a performance bottleneck. Let's see how to identify it in the browser and what causes the reflow. In normal process 阅读全文

摘要： It’s pretty likely that we’ll need to login as a particular user for many tests, let’s take our cy.request command and turn it into a custom command t 阅读全文