在main.js中用 ajax 获取数据渲染列表,bootstrap调用fetchJson获取数据,然后用函数appendListToDataList填充 table 列表。 document.body.onload=bootstrap;functionbootstrap(){vardataList=document.getElementById(’data-list’);fetchJson(DATA_URLS.list(),appendBreedToDropDown(dataList));}functionappendListToD...
另外,在本篇开头,再补充一个 Hooks 的概述,前两篇限于篇幅问题一直没有写一块。 注:距离上篇文章已经过去了两个月,这两个月业务繁忙所以没有什么时间更新该系列的文章,但 react 这两个月却从 16.9 更新到了 16.11,review 了一下这几次的更新都未涉及到 hooks,所以我也直接把源码笔记这块更新到了 16.11。
例如,当我们实现一个ListItem组件的时候,这个组件封装了一个li元素,那么我们不应该在li元素上直接设置key属性,因为没有意义,key是用来跟踪数组才有意义,于是我们在NumberList组件使用到ListItem组件的时候,在数组方法里面设置key属性才有意义。好,我们先来看一个错误设置key属性的版本: ...
spark.append(event.target.result); if (count === chunkList.length) { self.postMessage({ percentage: 100, hash: spark.end(), }); self.close(); } else { percentage += 100 / chunkList.length; self.postMessage({ percentage, }); loadNext(count); } }; }; loadNext(count); };1 ...
却不能改变网页中DOM tree本身的结构（例如，例子1中todoList的增删操作就涉及li元素的append或者remove...
This way, the DOM structure, styling code, and other logic are defined in a single place and reused everywhere to ensure consistency.This example wraps GridList and all of its children together into a single component which accepts a label prop and children, which are passed through to the ...
The following example shows how you might append a new item to the list.import {useListData} from 'react-stately'; let list = useListData({ initialItems: [ { name: 'Aardvark' }, { name: 'Kangaroo' }, { name: 'Snake' } ], initialSelectedKeys: ['Kangaroo'], getKey: (item) =>...
// This is the first hook in the list currentlyRenderingFiber.memoizedState = workInProgressHook = hook; } else { // Append to the end of the list workInProgressHook = workInProgressHook.next = hook; } return workInProgressHook; ...
instance of the CodePush runtime and add it to the list of // existing packages, specifying the right deployment key. If you don't already // have it, you can run "code-push deployment ls <appName> -k" to retrieve your key. return Arrays.<ReactPackage>asList( new Main...
Addimport cl.json.RNSharePackage;to the imports at the top of the file Addnew RNSharePackage()to the list returned by thegetPackages()method Append the following lines toandroid/settings.gradle: include ':react-native-share' project(':react-native-share').projectDir = new File(rootProject.pr...