Run results for: es6 map access with string vs symbol keys 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Get symbol key from map with mixed string and symbol keys

5.6M/s

Get string key from map with only string keys

5.4M/s

View exact numbers

Test name	Executions per second
✓ Get symbol key from map with mixed string and symbol keys	5,587,404 Ops/sec
Get string key from map with only string keys	5,362,408 Ops/sec

Script Preparation code:

var mapStringKeys = new Map([["one", true], ["two", true], ["three", true], ["four", true], ["five", true], ["six", true], ["seven", true], ["eight", true], ["nine", true], ["ten", true]]);
var mapStringAndSymbolKeys = new Map([["one", true], [Symbol("two"), true], ["three", true], [Symbol("four"), true], ["five", true], [Symbol("six"), true], ["seven", true], [Symbol('eight'), true], ["nine", true], [Symbol("ten"), true]]);

function random(elements) {
	return Math.random() * elements.length - 1
}

var stringKeys = Array.from(mapStringKeys.keys());
var symbolKeys = Array.from(mapStringAndSymbolKeys.keys());

Tests:

Get string key from map with only string keys
var value = mapStringKeys.get(random(stringKeys));
Get symbol key from map with mixed string and symbol keys
var value = mapStringAndSymbolKeys.get(random(symbolKeys));