08 2019 档案

摘要:When using useQuery from Apollo React Hooks, the request will be sent automatically after the component has been mounted. This might not be the desire 阅读全文
posted @ 2019-08-29 19:25 Zhentiw 阅读(1510) 评论(0) 推荐(0) 编辑
摘要:Use the focus-within pseudo-class to conditionally assign styling to a parent element when its child receives focus. HTML: CSS: 阅读全文
posted @ 2019-08-29 17:15 Zhentiw 阅读(125) 评论(0) 推荐(0) 编辑
摘要:Measuring is extremely important, without numbers we don’t know about potential problems and we don’t have a base we can improve upon. Performance Bud 阅读全文
posted @ 2019-08-29 17:12 Zhentiw 阅读(226) 评论(0) 推荐(0) 编辑
摘要:In a previous lesson we learned about implementing a custom preloading strategy. That gives you a lot of control over which route to preload and which 阅读全文
posted @ 2019-08-29 17:09 Zhentiw 阅读(333) 评论(0) 推荐(0) 编辑
摘要:Preloading all modules is quite an extreme approach and might not always be desirable. For instance, you don't want to preload lazy routes a user migh 阅读全文
posted @ 2019-08-29 17:06 Zhentiw 阅读(297) 评论(0) 推荐(0) 编辑
摘要:@NgModule({ declarations: [AppComponent, HomeComponent], imports: [ BrowserModule, MatSidenavModule, BrowserAnimationsModule, RouterModule.forRoot( [ { path: '', component: HomeComponent }, { path: 'n 阅读全文
posted @ 2019-08-29 17:02 Zhentiw 阅读(314) 评论(0) 推荐(0) 编辑
摘要:@mixin generateModifers($property) { #{$property}: $padding; &-large { #{$property}: $padding-large; } &-medium { #{$property}: 1.5rem; } &-small { #{$property}: $nordea-pa... 阅读全文
posted @ 2019-08-28 19:53 Zhentiw 阅读(197) 评论(0) 推荐(0) 编辑
摘要:We can easily code split and lazy load a route in Angular. However when the user then clicks that lazy loaded route, it make some time to actually fet 阅读全文
posted @ 2019-08-27 18:26 Zhentiw 阅读(287) 评论(0) 推荐(0) 编辑
摘要:In this lesson, we will cover Interfaces and Mixins. Interfaces act as a contract containing properties and methods that a class must define once it “ 阅读全文
posted @ 2019-08-25 19:42 Zhentiw 阅读(248) 评论(0) 推荐(0) 编辑
摘要:We will look at how we can create classes and explore some various features. Dart adopts a single-inheritance model, meaning that you can only extend 阅读全文
posted @ 2019-08-25 19:29 Zhentiw 阅读(210) 评论(0) 推荐(0) 编辑
摘要:Load Data from Test Fixtures in Cypress When creating integration tests with Cypress, we’ll often want to stub network requests that respond with larg 阅读全文
posted @ 2019-08-23 15:56 Zhentiw 阅读(215) 评论(0) 推荐(0) 编辑
摘要:Ever had the need for multiple "app themes", or even to completely dynamically load CSS based on which customer logs into your application? You could 阅读全文
posted @ 2019-08-22 16:18 Zhentiw 阅读(1468) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-21 03:20 Zhentiw 阅读(3) 评论(0) 推荐(0) 编辑
摘要:Unions are used when we want a GraphQL field or list to handle multiple types of data. With a Union Type, we can define a field that could resolve com 阅读全文
posted @ 2019-08-20 18:06 Zhentiw 阅读(207) 评论(0) 推荐(0) 编辑
摘要:Interfaces are similar to Unions in that they provide a mechanism for dealing with different types of data. However, an interface is more suited for d 阅读全文
posted @ 2019-08-20 18:01 Zhentiw 阅读(225) 评论(0) 推荐(0) 编辑
摘要:Fragments are selection sets that can be used across multiple queries. They allow you to refactor redundant selection sets, and they are essential whe 阅读全文
posted @ 2019-08-20 17:42 Zhentiw 阅读(162) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-20 02:56 Zhentiw 阅读(3) 评论(0) 推荐(0) 编辑
摘要:If we attempt to reset 'final' to a different value, we will get an error. The difference in practice between const and final is you use final when ce 阅读全文
posted @ 2019-08-19 20:19 Zhentiw 阅读(217) 评论(0) 推荐(0) 编辑
摘要:query($category:PetCategory=CAT, $status:PetStatus=AVAILABLE) { #availablePets is the alias availablePets:totalPets(status: AVAILABLE), #checkoutPets 阅读全文
posted @ 2019-08-16 22:08 Zhentiw 阅读(208) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-15 03:23 Zhentiw 阅读(3) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-15 03:17 Zhentiw 阅读(2) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-15 02:53 Zhentiw 阅读(4) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-15 00:48 Zhentiw 阅读(1) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-14 02:53 Zhentiw 阅读(2) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-14 00:46 Zhentiw 阅读(1) 评论(0) 推荐(0) 编辑
摘要:In this lesson, we are going to use aria-current to give a screen reader user more context about what the current page is. Historically, many develope 阅读全文
posted @ 2019-08-13 18:30 Zhentiw 阅读(259) 评论(0) 推荐(0) 编辑
摘要:Test: 阅读全文
posted @ 2019-08-11 22:01 Zhentiw 阅读(258) 评论(0) 推荐(0) 编辑
摘要:In this lesson, you'll learn how to use the loading="lazy" attribute available on images and iframes to lazily load below the fold images, which saves 阅读全文
posted @ 2019-08-11 16:53 Zhentiw 阅读(211) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-09 02:40 Zhentiw 阅读(3) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-08 02:53 Zhentiw 阅读(5) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-08 02:28 Zhentiw 阅读(1) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-08 02:17 Zhentiw 阅读(1) 评论(0) 推荐(0) 编辑
摘要:Most developers are familiar with using img tags and assigning the src inside of HTML. It is also possible to only use JavaScript to fetch the image f 阅读全文
posted @ 2019-08-07 15:51 Zhentiw 阅读(258) 评论(0) 推荐(0) 编辑
摘要:Normally if you place three the same size icons in a stack, they will stands on top of each other, then we can use 'Align' and 'Position' to positioni 阅读全文
posted @ 2019-08-07 01:50 Zhentiw 阅读(224) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-07 01:03 Zhentiw 阅读(3) 评论(0) 推荐(0) 编辑
摘要:Sometimes I am confused with 'liftA2' and 'converge' functions. Main difference between those is that: liftA2 takes applicative functor as second and 阅读全文
posted @ 2019-08-06 14:04 Zhentiw 阅读(153) 评论(0) 推荐(0) 编辑
摘要:For example we have a 'forEach' method which can loop though a linked list: Test: What if we want to use for...of loop? Then we need to convert Linked 阅读全文
posted @ 2019-08-06 13:36 Zhentiw 阅读(127) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-06 02:40 Zhentiw 阅读(1) 评论(0) 推荐(0) 编辑
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posted @ 2019-08-06 01:46 Zhentiw 阅读(1) 评论(0) 推荐(0) 编辑
摘要:Create a new application with Typescript: Then: Run: 阅读全文
posted @ 2019-08-04 20:58 Zhentiw 阅读(160) 评论(0) 推荐(0) 编辑
摘要:Routes are some times better served as a modal. If you have a modal (like a login modal) that needs to be routeable and appear on all pages you may ne 阅读全文
posted @ 2019-08-04 20:49 Zhentiw 阅读(406) 评论(0) 推荐(0) 编辑

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