mirror: A fast canonicalisation utility for stable object equality
chore: gold on the `toString`
Marais Rossouw
(Jun 29, 2023, 5:34 PM +1000)
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readme.md
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readme.md
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## 💨 Benchmark
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> via the [`/bench`](/bench) directory with Node v16.20.0 (Apple M1 Pro)
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> via the [`/bench`](/bench) directory with Node v18.16.1 (Apple M1 Pro)
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```
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✔ object-identity ~ 56,929,524 ops/sec ± 0.08%
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✔ object-hash ~ 114,195 ops/sec ± 0.01%
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✔ object-identity :: hashed ~ 46,224,968 ops/sec ± 0.03%
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✔ object-hash :: hashed ~ 52,104 ops/sec ± 0.01%
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✔ object-identity ~ 53,216,325 ops/sec ± 0.34%
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✔ object-hash ~ 110,440 ops/sec ± 0.01%
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✔ object-identity :: hashed ~ 45,415,100 ops/sec ± 0.05%
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✔ object-hash :: hashed ~ 51,365 ops/sec ± 0.01%
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```
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> ^ `object-identity` is not as feature-full it's alternatives, specifically around `function` values and other node
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src/index.ts
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src/index.ts
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let seen = new WeakMap<object, string>();
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function walk(input: any, ref_index: number) {
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if (input == null || typeof input !== 'object') return String(input);
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let tmp: any;
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let out = '';
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let i = 0;
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let type = Object.prototype.toString.call(input);
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if (input == null || typeof input !== 'object') return String(input);
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if (
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!(type === '[object RegExp]' || type === '[object Date]') &&
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seen.has(input)