We can use theuseCallbackhook to fix this.useCallbackmemoizes the function that's passed in, so that a new function is only returned when one of the hook dependencies changes. 我们可以使用useCallback钩子来解决这个问题。useCallback会记住传入的函数,以便仅当挂钩依赖项之一发生更改时才返回新函数。
: boolean, ): string { let scopedPerformanceLogger = createPerformanceLogger(); //存在runnales里 runnables[appKey] = { componentProvider, run: appParameters => { //运行run的时候,开始执行渲染。 renderApplication( componentProviderInstrumentationHook( componentProvider, scopedPerformanceLogger, ...//省...
describe: '包名', type: 'string', demand: false, // 非必需,没有提供包名列举所有模块的版本清单 }, }; exports.handler = function () { /** 1、解析命令参数 */ /** 2、获取版本日志,输出控制台 */ };
AI代码解释 // react-reconciler/src/ReactChildFiber.js line 1246exportfunctionreconcileChildren(current:Fiber|null,workInProgress:Fiber,nextChildren:any,renderExpirationTime:ExpirationTime,){if(current===null){// 首次渲染 创建子节点的`Fiber`实例workInProgress.child=mountChildFibers(workInProgress,null,next...
public class MainApplication extends Application implements ReactApplication { private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) { @Override protected boolean getUseDeveloperSupport() { return BuildConfig.DEBUG; } @Override protected String getJSBundleFile()...
{relativePath:string} > =(node, option) =>{const{ stop } =doJSXPathName(node.name)if(stop)return{ stop }const{ relativePath } = option// 写入行号constlineAttr =jsxAttribute(jsxIdentifier('data-inspector-line'),stringLiteral(node.loc.start.line.toString()), ...
children子项可能是String/Number这类原始类型数据。原始类型数据与文本节点对应,因此将其统一处理为TEXT_ELEMENT类型的对象 将children附加到props对象上 返回ReactElement 对象 function createElement (type, config, ...children) { let key = null; let ref = null; let props = {}; // 从 props 中分离 ke...
// packages\react-dom\src\client\ReactDOMComponent.js line 308 function setInitialDOMProperties( tag: string, domElement: Element, rootContainerElement: Element | Document, nextProps: Object, isCustomComponentTag: boolean, ): void { for (const propKey in nextProps) { ...
</React.Fragment>)}>{this.state.message}{/*onclick, this button sets an Objectasa message,nota string. */}{/* which will cause an errortooccurinthe component tree */} this.setState({ message: { text:"Hello World"} })}>Click heretochange message!</Sentry.ErrorBoundary>);}}export...
Define new themes by monaco.editor.defineTheme line number The line to jump on it loading React Node "Loading..." The loading screen before the editor will be mounted options object {} IDiffEditorConstructionOptions width union: number | string "100%" Width of the editor wrapper...