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import { escape } from 'lodash-es'
export const sleep = (ms: number) => {
return new Promise(resolve => setTimeout(resolve, ms))
}
export async function asyncRunSafe<T = any>(fn: Promise<T>): Promise<[Error] | [null, T]> {
try {
return [null, await fn]
}
catch (e) {
if (e instanceof Error)
return [e]
return [new Error('unknown error')]
}
}
export const getTextWidthWithCanvas = (text: string, font?: string) => {
const canvas = document.createElement('canvas')
const ctx = canvas.getContext('2d')
if (ctx) {
ctx.font = font ?? '12px Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"'
return Number(ctx.measureText(text).width.toFixed(2))
}
return 0
}
const chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_'
export function randomString(length: number) {
let result = ''
for (let i = length; i > 0; --i) result += chars[Math.floor(Math.random() * chars.length)]
return result
}
export const getPurifyHref = (href: string) => {
if (!href)
return ''
return escape(href)
}
export async function fetchWithRetry<T = any>(fn: Promise<T>, retries = 3): Promise<[Error] | [null, T]> {
const [error, res] = await asyncRunSafe(fn)
if (error) {
if (retries > 0) {
const res = await fetchWithRetry(fn, retries - 1)
return res
}
else {
if (error instanceof Error)
return [error]
return [new Error('unknown error')]
}
}
else {
return [null, res]
}
}
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