36 lines
633 B
JavaScript
36 lines
633 B
JavaScript
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const Symbol = require('es6-symbol');
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class Singleton {
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constructor() {
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const Class = this.constructor;
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if (!Class[this.singleton]) {
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Class[this.singleton] = this;
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}
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return Class[this.singleton];
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}
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static get instance() {
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if (!this[this.singleton]) {
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this[this.singleton] = new this();
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}
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return this[this.singleton];
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}
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static set instance(instance) {
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this[this.singleton] = instance;
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return this[this.singleton];
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}
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static get singleton() {
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return Symbol(this.namespace);
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}
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static reset() {
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delete this[this.singleton];
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}
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}
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export default Singleton;
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