48 lines
2.0 KiB
JavaScript
48 lines
2.0 KiB
JavaScript
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// src/utils.js
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export const Util = {
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clone: window.structuredClone || (obj => JSON.parse(JSON.stringify(obj))),
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base64: str => btoa(String.fromCharCode(...new TextEncoder().encode(str))),
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unbase64: str => new TextDecoder().decode(Uint8Array.from(atob(str), c => c.charCodeAt(0))),
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urlbase64: str => Util.base64(str).replace(/[+/=]/g, m => ({ '+': '-', '/': '', '=': '' }[m])),
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unurlbase64: str => Util.unbase64(str.replace(/[-_.]/g, m => ({ '-': '+', '_': '/', '.': '=' }[m])).padEnd(Math.ceil(str.length / 4) * 4, '=')),
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safeJson: str => { try { return JSON.parse(str) } catch { return null } },
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updateDefaults: (obj, defaults) => { for (const k in defaults) if (obj[k] === undefined) obj[k] = defaults[k] },
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copyFunction: (toObj, fromObj, ...funcNames) => { funcNames.forEach(name => toObj[name] = fromObj[name].bind(fromObj)) },
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getFunctionBody: fn => { const code = fn.toString(); return code.slice(code.indexOf('{') + 1, code.lastIndexOf('}')).trim() },
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makeDom: html => {
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if (html.includes('>\n')) html = html.replace(/>\s+</g, "><").trim()
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const node = document.createElement('div')
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node.innerHTML = html
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return node.children[0]
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},
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newAvg: () => {
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let total = 0, count = 0, avg = 0
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return {
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add: (v) => {
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total += v
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count++
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return avg = total / count
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},
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get: () => avg,
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clear: () => { total = 0, count = 0, avg = 0 }
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}
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},
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newTimeCount: () => {
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let startTime = 0, total = 0, count = 0
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return {
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start: () => startTime = new Date().getTime(),
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end: () => {
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const endTime = new Date().getTime()
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const left = endTime - startTime
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startTime = endTime
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total += left
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count++
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return left
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},
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avg: () => total / count
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}
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},
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}
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globalThis.Util = Util;
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