react中context怎么使用

reactcontext reactcontextpropscontextpropsWindows10react17.0.1Dell G3Context props React props UI Context propsContext theme context, props Context React Context Provider context Provider defaultValue Provider undefined Provider value defaultValue Context Provider React context Provide免费云主机、域名r value Provider Provider Provider value Provider consumer shouldComponentUpdate consumer class contextType React.createContext() Context this.context Context render React context contextfunction as a child context React value context Provider value Providervalue createContext() defaultValuecontext displayName propertyReact DevTools context DevTools MyDisplayName theme dynamic valuestheme-context.jsthemed-button.jsapp.js props App themes context context consumers contexttheme-context.jstheme-toggler-button.jsapp.js context React consumers context


context context reference identity provider consumers Provider consumers value value state reactcontext

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