摘要：
function random(leng: number = 6): string { let s = Math.random().toString(36).substring(2, leng + 2) if (s.length < leng) return s + random(leng - s. 阅读全文
摘要：
function deepCopy2<T extends object>(object: T) { return new Promise<T>((resolve) => { const {port1, port2} = new MessageChannel(); port1.postMessage( 阅读全文
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function copyText(txt: string) { return new Promise((resolve, reject) => { const domCopy = function () { const input = document.createElement('input') 阅读全文
摘要：
function formatPrice(val: string | number, precision: number = 2) { if (typeof val 'string') { let num = parseFloat(val) if (isNaN(num) || num.toStrin 阅读全文
