01-获取过去一周的时间
const arr = [...Array(7).keys()].map(days => new Date(Date.now() - 86400000 * days)) console.log(arr)
02-生成随机ID
const codeId = Math.random().toString(36).substring(2)
console.log(codeId)
03-获取URL的查询参数
// 模拟 url,如:`?foo=bar&baz=bing` const url = '?page=smqd%2Fuser%2FevalFill&channelType=CKJKX&orderId=&cardticketId=T363503' let object = {} // location.search.replace(/([^?&=]+)=([^&]+)/g, (_, k, v) => object[k] = v) url.replace(/([^?&=]+)=([^&]+)/g, (_, k, v) => object[k] = v) console.log(object)
04-本地时间
const now = new Date().toLocaleString().slice(0) // const now = new Date().toLocaleString().slice(9, 19) console.log(now)
05-生成随机十六进制代码(生成随机颜色)
const color = '#' + Math.floor(Math.random() * 0xffffff).toString(16).padEnd(6, '0')
console.log(color);
06-面试题
// 找到 1 ~ 100 中 3的倍数 和 5的倍数 for(i = 0; ++i < 101; console.log(i % 5 ? f || i: f + '5的倍数'))f = i % 3? '': '3的倍数'