JavaScript – 產生亂數的方法
方法一
1 2 3 4 5 6 7 8 9 10 11 12 13 |
function makeid(length) { var result = ''; var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; var charactersLength = characters.length; for ( var i = 0; i < length; i++ ) { result += characters.charAt(Math.floor(Math.random() * charactersLength)); } return result; } console.log(makeid(5)); |
方法二
1 2 3 4 |
let r = Math.random().toString(36).substring(7); console.log("random", r); |