49 lines
784 B
JavaScript
49 lines
784 B
JavaScript
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class Cache {
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constructor() {
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this.kv = {};
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}
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/**
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* @param {string} key
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* @param {string} value
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* @param {boolean?} noOverride
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*/
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set(key, value, noOverride) {
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if (noOverride && key in this.kv) {
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throw new Error("key exists");
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}
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this.kv[key] = value;
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}
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/**
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* @param {string} key
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* @return {string?}
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*/
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get(key) {
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return this.kv[key] || null;
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}
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/**
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* @param {string[]} keys
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*/
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del(...keys) {
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for (const key of keys) {
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delete this.kv[key];
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}
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}
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}
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let cache = null;
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exports.new = function () {
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if (cache) throw new Error("cache already initiate");
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cache = new Cache();
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return cache;
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};
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exports.get = function () {
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if (!cache) throw new Error("cache not initiate");
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return cache;
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};
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