JavaScript – 產生亂數的方法

2019-12-11 / JSN / 0 Comments / 1,073 次瀏覽

方法一

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

let r = Math.random().toString(36).substring(7);

console.log("random", r);