function dispatchEventStroage () {
const signSetItem = localStorage.setItem;
localStorage.setItem = function (key, val) {
let setEvent = new Event('setItemEvent')
setEvent.key = key
setEvent.newValue = val
window.dispatchEvent(setEvent)
signSetItem.apply(this, arguments)
}
};
dispatchEventStroage();
window.addEventListener('setItemEvent', function (e) {
console.log('change信息：',e);
})
标签：function,val,setEvent,localStorage,key,signSetItem,监听 From： https://www.cnblogs.com/swt-axios/p/16721970.html