router life cycle
componentWillReceiveProps
shouldComponentUpdate
componentWillUpdate
componentDidUpdate
each hook function is executed only once. How to listen for route changes when switching react-router, and then execute the specified method?
see onUpdate in react-router "s API (it will be called when the state of the route needs to be updated when the URL changes), but how exactly do I use it, and where do I put it in the router?
We usually use a state manager, such as react-redux, where store has a subscriptions to listen for route changes.
it is recommended that you use encapsulated react-redux dvajs
https://github.com/ReactTrain.
the method history.listen (), which uses history directly, automatically triggers when you switch routes
import createHistory from "history/createBrowserHistory"
const history = createHistory()
// Get the current location.
const location = history.location
// Listen for changes to the current location.
const unlisten = history.listen((location, action) => {
// location is an object like window.location
console.log(action, location.pathname, location.state)
})
// Use push, replace, and go to navigate around.
history.push("/home", { some: "state" })
// To stop listening, call the function returned from listen().
unlisten()it's not necessary, just use componentDidUpdate.
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