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class LockError extends Error {} | |
function createLock () { | |
/** @type {boolean} */ | |
let locked = false; | |
/** @type {PromiseObject[]} */ | |
let pending = []; | |
function acquire () { |
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import fs from 'fs'; | |
import path from 'path'; | |
const fsp = fs.promises; | |
/** | |
* Creates a directory tree | |
* @param {string} dirname Path to directory to read | |
* @returns {object} A directory tree |
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export function debounce<F extends ((...args: any) => any)> ( | |
fn: F, | |
ms: number | |
) { | |
/** | |
* Not the correct type, because of these conflicts: | |
* - Node's setTimeout returns a `Timeout` object | |
* - Browser's setTimeout returns a `number` | |
* | |
* TypeScript doesn't provide an option to specifically exclude certain type |
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function range (from, to) { | |
if (!to) { | |
to = from; | |
from = 0; | |
} | |
if (from > to) { | |
throw RangeError('`from` is higher than `to`'); | |
} | |
return Array.from({ length: to - from }, (_, i) => i + from); |
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export function readable (init, start) { | |
function subscribe (listener) { | |
let running = true; | |
let prev = init; | |
let stop; | |
function set (curr) { | |
if (running && curr !== prev) { | |
prev = curr; | |
if (stop) listener(curr); |
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function noop () {} | |
export function writable (init, start) { | |
let subscribers = []; | |
let prev = init; | |
let running = false; | |
let stop; | |
function notify () { | |
let subs = subscribers.concat(); |
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function count (str: string, search: string) { | |
let n = -1; | |
let i = 0; | |
while (i !== -1) { | |
i = str.indexOf(search, i + 1); | |
n++; | |
} | |
return n; |
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let epoch = 1420070400000; | |
let increment = 0; | |
function timestamp_to_snowflake (timestamp = Date.now()) { | |
let snowflake = ''; | |
// timestamp | |
snowflake += (timestamp - epoch).toString(2).padStart(42, '0'); | |
// worker id | |
snowflake += '00001'; |
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// 249 bytes | |
var o={helloWorld:"hello-world-123",fooBar:"foo-bar-245",barBaz:"bar-baz-934"};let l=Object.assign(document.createElement("div"),{textContent:"Hello world!",className:[o.helloWorld,o.helloWorld,o.fooBar,o.barBaz].join(" ")});document.body.append(l); |
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function __async (generator) { | |
return function (...args) { | |
let it = generator.apply(this, args); | |
return new Promise((resolve, reject) => { | |
step(it.next()); | |
function step (result) { | |
if (result.done) resolve(result.value); | |
else Promise.resolve(result.value).then(fulfilled, rejected); |