30 lines
613 B
Markdown
30 lines
613 B
Markdown
---
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nav:
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title: 前端
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path: /fea
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group:
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title: 💊 设计模式
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order: 2
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---
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## 单例模式
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一个类只有一个实例，并提供一个访问它的全局访问点。
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```js
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// ------------------- 单例模式 -------------------
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export default class Singleton {
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constructor(name, creator, products) {
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this.name = name
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this.creator = creator
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this.products = products
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}
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static getInstance(name, creator, products) {
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if (!this.instance) {
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this.instance = new Singleton(name, creator, products)
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}
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return this.instance
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}
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}
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``` |