import { Benchmark } from "@weedzcokie/benchmark";
function cellNumberToName(x: number) {
let name = "";
while (x >= 0) {
name = String.fromCodePoint(x % 26 + 65) + name;
x = Math.floor(x / 26) - 1;
}
return name;
}
const DATA_SIZE = 100000;
const lookups: string[] = [];
for (let i = 0; i < DATA_SIZE; ++i) {
lookups.push(cellNumberToName(i));
}
function mapAssignment() {
const map = new Map();
for (const x of lookups) {
map.set(x, true);
}
return map;
}
function setAssignment() {
const set = new Set();
for (const x of lookups) {
set.add(x);
}
return set;
}
function objectAssignment() {
const object: Record<string, boolean> = {};
for (const x of lookups) {
object[x] = true;
}
return object;
}
const bench = new Benchmark();
bench.add("Map assignment", mapAssignment);
bench.add("Set assignment", setAssignment);
bench.add("Object assignment", objectAssignment);
await bench.run();
console.table(bench.table());Output:
┌───────────────────┬────────────┬────────────┬──────────┬────────────────┬────────────────┬───────────────────┐
│ (index) │ 99th (µs) │ +/- (µs) │ Op/s │ Set assignment │ Map assignment │ Object assignment │
├───────────────────┼────────────┼────────────┼──────────┼────────────────┼────────────────┼───────────────────┤
│ Set assignment │ '5455.871' │ '1761.586' │ '143.26' │ '-' │ '1.12' │ '1.44' │
│ Map assignment │ '6651.903' │ '1131.191' │ '127.92' │ '0.89' │ '-' │ '1.29' │
│ Object assignment │ '7741.439' │ '2270.702' │ '99.36' │ '0.69' │ '0.78' │ '-' │
└───────────────────┴────────────┴────────────┴──────────┴────────────────┴────────────────┴───────────────────┘
We do not print anything. You can listen on the task-start event to know when a task is starting and
task-done to know then a task is done.
Example:
bench.on("task-start", task => {
console.log(`Running task '${task.label}'...`);
});
bench.on("task-done", (task, result) => {
console.log("Task done:", task.label, result);
});Typescript everywhere so probably easiest to look at type definitions.
Fires when a task starts running.
Fires when a task is done running.
Fires when all tasks are done running.