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23 lines
484 B
JavaScript
23 lines
484 B
JavaScript
class Model {
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constructor() {
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this._listeners = [];
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}
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addListener(listener) {
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this._listeners.push(listener);
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}
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removeListener(listener) {
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const index = this._listeners.findIndex((item) => item === listener);
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if (index != -1) this._listeners.splice(index, 1);
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}
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notify(exclude) {
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for (const listener of this._listeners) {
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if (listener != exclude) listener();
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}
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}
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}
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exports.Model = Model;
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