bench

.gitignore

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+.history
+.DS_Store
+node_modules

.yarnrc.yml

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+nodeLinker: node-modules

bench.js

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+import benchmark from 'benchmark'
+
+import moment from 'moment'
+
+const { Suite } = benchmark;
+
+let suite = new Suite()
+
+const INPUT = '2022-09-12T18:11:04.884+05:00'
+
+suite
+  .add('moment#parseZone', () => moment.parseZone(INPUT))
+  .on('cycle', function(event) {
+    console.log(String(event.target))
+  })
+  .on('complete', function() {
+    console.log('Fastest is ' + this.filter('fastest').map('name'))
+  })
+  .run()

fastParseZone.js

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+import moment from 'moment';
+
+/**
+ * Parses an ISO-8601 formatted date in this format only:
+ * - "2022-12-03T12:30:00.000-07:00"
+ * 
+ * Returns a Moment.JS object (moment)
+ */
+export function fastParseZone(input) {
+
+}

index.js

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+import moment from 'moment';
+
+const INPUT = '2022-09-12T18:11:04.884+05:00'
+
+const now = Date.now();
+console.log("Starting benchmark");
+for (let i = 0; i < 100000; i++) {
+  moment.parseZone(INPUT)
+}
+const elapsed = Date.now() - now;
+console.log("Finished benchmark in " + elapsed + "ms");

package.json

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+{
+    "name": "benchmark",
+    "version": "1.0.0",
+    "type": "module",
+    "dependencies": {
+        "benchmark": "^2.1.4",
+        "moment": "^2.29.4"
+    }
+}

yarn.lock

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+# This file is generated by running "yarn install" inside your project.
+# Manual changes might be lost - proceed with caution!
+
+__metadata:
+  version: 5
+  cacheKey: 8
+
+"benchmark@npm:^2.1.4":
+  version: 2.1.4
+  resolution: "benchmark@npm:2.1.4"
+  dependencies:
+    lodash: ^4.17.4
+    platform: ^1.3.3
+  checksum: aa466561d4f2b0a2419a3069b8f90fd35ffacf26849697eea9de525ecfbd10b44da11070cc51c88d772076db8cb2415641b493de7d6c024fdf8551019c6fcf1c
+  languageName: node
+  linkType: hard
+
+"benchmark@workspace:.":
+  version: 0.0.0-use.local
+  resolution: "benchmark@workspace:."
+  dependencies:
+    benchmark: ^2.1.4
+    moment: ^2.29.4
+  languageName: unknown
+  linkType: soft
+
+"lodash@npm:^4.17.4":
+  version: 4.17.21
+  resolution: "lodash@npm:4.17.21"
+  checksum: eb835a2e51d381e561e508ce932ea50a8e5a68f4ebdd771ea240d3048244a8d13658acbd502cd4829768c56f2e16bdd4340b9ea141297d472517b83868e677f7
+  languageName: node
+  linkType: hard
+
+"moment@npm:^2.29.4":
+  version: 2.29.4
+  resolution: "moment@npm:2.29.4"
+  checksum: 0ec3f9c2bcba38dc2451b1daed5daded747f17610b92427bebe1d08d48d8b7bdd8d9197500b072d14e326dd0ccf3e326b9e3d07c5895d3d49e39b6803b76e80e
+  languageName: node
+  linkType: hard
+
+"platform@npm:^1.3.3":
+  version: 1.3.6
+  resolution: "platform@npm:1.3.6"
+  checksum: 6f472a09c61d418c7e26c1c16d0bdc029549d512dbec6526216a1e59ec68100d07007d0097dcba69dddad883d6f2a83361b4bdfe0094a3d9a2af24158643d85e
+  languageName: node
+  linkType: hard