38 lines
732 B
TypeScript
38 lines
732 B
TypeScript
export function createCallbackManager() {
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const callbacks: AnyToVoidFunction[] = [];
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function addCallback(cb: AnyToVoidFunction) {
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callbacks.push(cb);
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return () => {
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removeCallback(cb);
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};
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}
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function removeCallback(cb: AnyToVoidFunction) {
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const index = callbacks.indexOf(cb);
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if (index !== -1) {
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callbacks.splice(index, 1);
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}
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}
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function runCallbacks(...args: any[]) {
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callbacks.forEach((callback) => {
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callback(...args);
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});
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}
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function hasCallbacks() {
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return Boolean(callbacks.length);
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}
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return {
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runCallbacks,
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addCallback,
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removeCallback,
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hasCallbacks,
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};
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}
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export type CallbackManager = ReturnType<typeof createCallbackManager>;
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