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nodejs/benchmark/es/map-bench.js
Rich Trott 566a1513d1 benchmark: reformat code for clarity
Some of the benchmark code can be a little dense. Not *very* hard to
read but perhaps harder than it needs to be.

These changes (many of them whitespace-only) hopefully improve
readability.

There are also a few cases of `assert.equal()` that are changed to
`assert.strictEqual()`.

PR-URL: https://github.com/nodejs/node/pull/9790
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2016-11-27 21:51:09 -08:00

97 lines
2.0 KiB
JavaScript

'use strict';
const common = require('../common.js');
const assert = require('assert');
const bench = common.createBenchmark(main, {
method: ['object', 'nullProtoObject', 'fakeMap', 'map'],
millions: [1]
});
function runObject(n) {
const m = {};
var i = 0;
bench.start();
for (; i < n; i++) {
m['i' + i] = i;
m['s' + i] = String(i);
assert.strictEqual(String(m['i' + i]), m['s' + i]);
m['i' + i] = undefined;
m['s' + i] = undefined;
}
bench.end(n / 1e6);
}
function runNullProtoObject(n) {
const m = Object.create(null);
var i = 0;
bench.start();
for (; i < n; i++) {
m['i' + i] = i;
m['s' + i] = String(i);
assert.strictEqual(String(m['i' + i]), m['s' + i]);
m['i' + i] = undefined;
m['s' + i] = undefined;
}
bench.end(n / 1e6);
}
function fakeMap() {
const m = {};
return {
get(key) { return m['$' + key]; },
set(key, val) { m['$' + key] = val; },
get size() { return Object.keys(m).length; },
has(key) { return Object.prototype.hasOwnProperty.call(m, '$' + key); }
};
}
function runFakeMap(n) {
const m = fakeMap();
var i = 0;
bench.start();
for (; i < n; i++) {
m.set('i' + i, i);
m.set('s' + i, String(i));
assert.strictEqual(String(m.get('i' + i)), m.get('s' + i));
m.set('i' + i, undefined);
m.set('s' + i, undefined);
}
bench.end(n / 1e6);
}
function runMap(n) {
const m = new Map();
var i = 0;
bench.start();
for (; i < n; i++) {
m.set('i' + i, i);
m.set('s' + i, String(i));
assert.strictEqual(String(m.get('i' + i)), m.get('s' + i));
m.set('i' + i, undefined);
m.set('s' + i, undefined);
}
bench.end(n / 1e6);
}
function main(conf) {
const n = +conf.millions * 1e6;
switch (conf.method) {
case 'object':
runObject(n);
break;
case 'nullProtoObject':
runNullProtoObject(n);
break;
case 'fakeMap':
runFakeMap(n);
break;
case 'map':
runMap(n);
break;
default:
throw new Error('Unexpected method');
}
}