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const secs2Time = (secs) => { | |
const hours = Math.floor(secs / 60 / 60).toString().padStart(2, 0) | |
return hours + ':' + new Date(secs * 1000).toISOString().substr(14, 5) | |
} |
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function download(filename, text) { | |
Object.assign(document.createElement("a"), { | |
download: filename, | |
href: "data:text/plain;charset=utf-8," + encodeURIComponent(text), | |
}).click(); | |
} |
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function chainable(obj) { | |
const proxy = new Proxy(obj, { | |
get(target, prop) { | |
return typeof target[prop] === 'function' | |
? (...args) => target[prop](...args) || proxy | |
: target[prop] | |
}, | |
}) | |
return proxy | |
} |
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function withMemoization(func, identifierFunc) { | |
const cache = new Map() | |
return (...args) => { | |
const identifier = identifierFunc(...args) | |
if (cache.has(identifier)) { | |
return cache.get(identifier) | |
} | |
const result = func(...args) | |
cache.set(identifier, result) |
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const SORT_STRATEGIES = { | |
asc: (a, b) => (a - b > 0 ? 1 : -1), | |
desc: (a, b) => (a - b < 0 ? 1 : -1), | |
}; | |
const pipe = (...fns) => | |
fns.reduce( | |
(f, g) => | |
(...args) => | |
g(f(...args)) |
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const createInterval = () => { | |
let interval = null | |
const start = (cb, delay) => !interval && (interval = setInterval(cb, delay)) | |
const stop = () => { | |
clearInterval(interval) | |
interval = null | |
} | |
return { start, stop } | |
} |
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<div id="app"></div> | |
<script> | |
const $ = (...args) => { | |
if (args.length > 1) args.reverse() | |
const [query, parent = document] = args | |
return Array.from(parent.querySelectorAll(query)) | |
} | |
$.create = (html) => { |
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const timeTaken = | |
(fn) => | |
async (...args) => { | |
console.time(fn.name); | |
const res = await fn(...args); | |
console.timeEnd(fn.name); | |
return res; | |
}; |
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const getGlobals = (() => { | |
const diff = (a, b) => a.filter((v) => !b.includes(v)) | |
const windowProps = JSON.parse( | |
'["window","self","document","name","location","customElements","history","locationbar","menubar","personalbar","scrollbars","statusbar","toolbar","status","closed","frames","length","top","opener","parent","frameElement","navigator","origin","external","screen","innerWidth","innerHeight","scrollX","pageXOffset","scrollY","pageYOffset","visualViewport","screenX","screenY","outerWidth","outerHeight","devicePixelRatio","clientInformation","screenLeft","screenTop","defaultStatus","defaultstatus","styleMedia","onsearch","isSecureContext","performance","onappinstalled","onbeforeinstallprompt","crypto","indexedDB","webkitStorageInfo","sessionStorage","localStorage","onbeforexrselect","onabort","onblur","oncancel","oncanplay","oncanplaythrough","onchange","onclick","onclose","oncontextmenu","oncuechange","ondblclick","ondrag","ondragend","ondragenter","ondragleave","ondragover","ondragstart","o |
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function prop(value, path) { | |
path = path | |
.replace(/\[(\d)\]/g, (_, v) => '.' + v) | |
.replace(/^\./, '') | |
.split('.') | |
let current = value | |
for (let prop of path) { | |
if (current[prop]) current = current[prop] | |
else return current[prop] | |
} |