fillArray__Java-vs-JS

Speed comparison of Java vs. JavaScript (TypeScript, Deno, NodeJS), filling an array with 1 million numbers.

Tests done on: Intel i7 2.9 GHz, Windows 10 64bit

Java: OpenJDK 15.0.1

3 test runs with parameters: 1000002, 1000003, 1000004 (to avoid any runtime caching)

growArray.java

• 0.0291516s
• 0.0306681s
• 0.0293959s
• AVERAGE: 29.74ms

growList.java

• 0.1172112
• 0.1074784
• 0.1174478
• AVERAGE: 114.0ms

fillArray.java

• 0.0051042s
• 0.0049314s
• 0.0058498s
• AVERAGE: 5.3ms

growArray.js

Brave browser (Version 1.16.68 Chromium: 86.0.4240.111)

• 20.570068359375 ms
• 21.253173828125 ms
• 19.4140625 ms
• AVERAGE: 20.4ms

Firefox (Developer Edition 83.0b6)

• 328ms
• 330ms
• 332ms
• AVERAGE: 330.0ms

fillArray.js

Brave browser (Version 1.16.68 Chromium: 86.0.4240.111)

• 4.76708984375 ms
• 2.39404296875 ms
• 2.76123046875 ms
• AVERAGE: 3.3ms

Firefox (Developer Edition 83.0b6)

• 462ms
• 463ms
• 440ms
• AVERAGE: 455ms

fillArray_TS.ts

Deno { deno: "1.5.1", v8: "8.7.220.3", typescript: "4.0.3" }

• 4ms
• 4ms
• 5ms
• AVERAGE: 4.3ms (speed in NodeJS is equivalent)

fillArrayInt32.ts

Deno { deno: "1.5.1", v8: "8.7.220.3", typescript: "4.0.3" }

• 5ms
• 5ms
• 6ms
• AVERAGE: 5.7ms (speed in NodeJS is equivalent)