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js 实现前端路由的方法

前端路由原理

History API

https://developer.mozilla.org/en-US/docs/Web/API/History_API

https://developer.mozilla.org/en-US/docs/Web/API/History

length (read only)
scrollRestoration (auto or manual)
state (read only)

window.history.back();
window.history.go(-1);

window.history.forward();
window.history.go(1)

window.history.pushState()
window.history.replaceState()

// no need window

history.back();
history.go(-1);

history.forward();
history.go(1)

history.pushState()
history.replaceState()

https://developer.mozilla.org/en-US/docs/Web/API/Window/history

https://developer.mozilla.org/en-US/docs/Web/API/History_API/Working_with_the_History_API

https://developer.mozilla.org/en-US/docs/Web/API/History/pushState

https://developer.mozilla.org/en-US/docs/Web/API/History/replaceState

let stateObj = {
    foo: "bar",
};

history.pushState(stateObj, "page 2", "bar.html");


history.replaceState(stateObj, "page 3", "bar2.html");

popstate

https://developer.mozilla.org/en-US/docs/Web/API/Window/popstate_event

popstate

window.addEventListener('popstate', (event) => {
  console.log("location: " + document.location + ", state: " + JSON.stringify(event.state));
});

history.pushState({page: 1}, "title 1", "?page=1");
history.pushState({page: 2}, "title 2", "?page=2");
history.replaceState({page: 3}, "title 3", "?page=3");
history.back(); // Logs "location: http://example.com/example.html?page=1, state: {"page":1}"
history.back(); // Logs "location: http://example.com/example.html, state: null"
history.go(2);  // Logs "location: http://example.com/example.html?page=3, state: {"page":3}

onpopstate

window.onpopstate = function(event) {
  console.log("location: " + document.location + ", state: " + JSON.stringify(event.state));
};

history.pushState({page: 1}, "title 1", "?page=1");
history.pushState({page: 2}, "title 2", "?page=2");
history.replaceState({page: 3}, "title 3", "?page=3");
history.back(); // Logs "location: http://example.com/example.html?page=1, state: {"page":1}"
history.back(); // Logs "location: http://example.com/example.html, state: null"
history.go(2);  // Logs "location: http://example.com/example.html?page=3, state: {"page":3}"

hash router

hashchange

https://developer.mozilla.org/en-US/docs/Web/API/Window/hashchange_event

window.addEventListener('hashchange', function() {
  console.log('The hash has changed!')
}, false);

function locationHashChanged() { 
  if (location.hash === '#cool-feature') { 
    console.log("You're visiting a cool feature!"); 
  } 
} 

window.onhashchange = locationHashChanged;

refs

client-side routing

https://krasimirtsonev.com/blog/article/deep-dive-into-client-side-routing-navigo-pushstate-hash

https://technologyconversations.com/2015/08/09/including-front-end-web-components-into-microservices/

https://juejin.im/post/6844903842643968014

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