Improved benchmarks

Author: AsyncBanana

bench.js

@@ -1,6 +1,10 @@
 import deepDiff from "deep-diff";
 import deepObjectDiff from "deep-object-diff";
+import { diffJson } from "diff";
 import microdiff from "./dist/index.js";
+import { hrtime } from "node:process";
+import colors from "picocolors";
+
 const obj = {
 	test: "test",
 	testing: true,
@@ -13,12 +17,37 @@ const newObj = {
 	bananas: "awesome",
 	bestFruits: ["bananas", "kiwi", "blueberries", "blackberries"],
 };
-console.time("deep-diff");
-deepDiff.diff(obj, newObj);
-console.timeEnd("deep-diff");
-console.time("deep-object-diff");
-deepObjectDiff.detailedDiff(obj, newObj);
-console.timeEnd("deep-object-diff");
-console.time("microdiff");
-microdiff(obj, newObj);
-console.timeEnd("microdiff");
+const benchmarks = {
+	"deep-diff": () => deepDiff.diff(obj, newObj),
+	"deep-object-diff": () => deepObjectDiff.detailedDiff(obj, newObj),
+	jsdiff: () => diffJson(obj, newObj),
+	microdiff: () => microdiff(obj, newObj),
+};
+let times = {};
+for (let benchmark in benchmarks) {
+	times[benchmark] = [];
+	for (let i = 1; i < 100; i++) {
+		let time = hrtime();
+		benchmarks[benchmark]();
+		times[benchmark].push(hrtime(time)[1]);
+	}
+	times[benchmark] =
+		times[benchmark].reduce((pv, nv) => pv + nv) / times[benchmark].length;
+}
+let output = [];
+let fastest = "";
+for (let time in times) {
+	if (!fastest || times[time] < times[fastest]) {
+		fastest = time;
+	}
+}
+for (let time in times) {
+	output.push(
+		`${time}: ${Math.round(times[time])}ns - ${
+			fastest === time
+				? colors.bold(colors.green("Fastest"))
+				: `${Math.round((times[time] / times[fastest] - 1) * 100)}% slower`
+		}`
+	);
+}
+console.log(colors.bold(colors.green("Benchmarks\n")) + output.join("\n"));

package.json

@@ -6,10 +6,10 @@
 	"module": "./dist/index.js",
 	"types": "./dist/index.d.ts",
 	"scripts": {
-		"build": "tsc",
-		"test": "tsc && uvu tests",
-		"bench": "tsc && node bench.js",
-		"prepublish": "tsc"
+		"build": "tsc && prettier -w dist/*",
+		"test": "npm run build && uvu tests",
+		"bench": "npm run build && node bench.js",
+		"prepublish": "npm run build"
 	},
 	"keywords": [
 		"diff",
@@ -23,6 +23,8 @@
 	"devDependencies": {
 		"deep-diff": "^1.0.2",
 		"deep-object-diff": "^1.1.0",
+		"diff": "^5.0.0",
+		"picocolors": "^1.0.0",
 		"prettier": "^2.4.1",
 		"typescript": "^4.4.4",
 		"uvu": "^0.5.2"