JavaScript 生成 6 位随机验证码

function generateCode() { var code = ''; var chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; for (var i = 0; i < 6; i++) { code += chars.charAt(Math.floor(Math.random() * chars.length)); } return code; }

console.log(generateCode()); // 输出一个 6 位随机验证码