20 lines
406 B
TypeScript
20 lines
406 B
TypeScript
export class Event {
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private listeners: Function[] = []
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addListener (callback: Function) {
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this.listeners.push(callback)
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}
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removeListener (callback: Function) {
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const index = this.listeners.indexOf(callback)
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if (index !== -1) {
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this.listeners.splice(index, 1)
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}
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}
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emit (...args: any[]) {
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for (const listener of this.listeners) {
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listener(...args)
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}
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}
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}
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