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19 lines
542 B
19 lines
542 B
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.default = uniq;
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function uniq(arr, cache) {
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if (cache === void 0) { cache = new Map(); }
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var r = [];
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if (Array.isArray(arr)) {
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for (var i = 0, len = arr.length; i < len; i++) {
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var item = arr[i];
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// 加一个 cache，提升性能
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if (!cache.has(item)) {
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r.push(item);
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cache.set(item, true);
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}
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}
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}
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return r;
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}
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//# sourceMappingURL=uniq.js.map
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