Initial commit

README.md

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+# time-call
+
+Measures the execution time of a chunk of code to nanosecond precision, while also providing access to its return value.
+
+Proper docs coming Eventually(tm), see example.js in the repo for now.

example.js

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+"use strict";
+
+const timeCall = require("./");
+
+let dummyArray = new Array(20000).fill(0);
+
+let { value, time } = timeCall(() => {
+	for (let i = 0; i < 1e3; i++) {
+		dummyArray = dummyArray.map((value) => value + 1);
+	}
+
+	return dummyArray;
+});
+
+console.log(time); // 386335402
+console.log(value); // [ 1000, 1000, 1000, 1000, 1000, 1000, 1000, 1000, 1000, 1000, ...
+  

index.js

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+"use strict";
+
+function hrtimeToNanoseconds(time) {
+	// If the numbers here become big enough to cause loss of precision, we probably have bigger issues than numeric precision...
+	return (time[0] * 1e9) + time[1];
+}
+
+module.exports = function measureTime(func) {
+	// let startTime = process.hrtime.bigint();
+	let startTime = hrtimeToNanoseconds(process.hrtime());
+	let result = func();
+	// let endTime = process.hrtime.bigint();
+	let endTime = hrtimeToNanoseconds(process.hrtime());
+
+	return {
+		value: result,
+		time: (endTime - startTime)
+	};
+};

package.json

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+{
+  "name": "time-call",
+  "version": "0.1.0",
+  "main": "index.js",
+  "repository": "https://git.cryto.net/joepie91/time-call.git",
+  "author": "Sven Slootweg <admin@cryto.net>",
+  "license": "WTFPL OR CC0-1.0"
+}