create event bus vue code example
Example 1: vuejs event bus typescript
class Event{
constructor(){
this.events = {};
}
on(eventName, fn) {
this.events[eventName] = this.events[eventName] || [];
this.events[eventName].push(fn);
}
off(eventName, fn) {
if (this.events[eventName]) {
for (var i = 0; i < this.events[eventName].length; i++) {
if (this.events[eventName][i] === fn) {
this.events[eventName].splice(i, 1);
break;
}
};
}
}
trigger(eventName, data) {
if (this.events[eventName]) {
this.events[eventName].forEach(function(fn) {
fn(data);
});
}
}
}
export default new Event();
Example 2: vuejs event bus typescript
import Vue from 'vue';
import $bus from '.../event.js';
const app = Vue.createApp({})
app.config.globalProperties.$bus = $bus;