JavaScript中的许可keygen

发布于 2025-02-12 12:13:53 字数 928 浏览 1 评论 0原文

因此，我在这里看到了另一个解决方案，当时我遇到了一个问题。虽然问题并没有完全解决。

这是我在这里发现的代码。

function makeid(length) {
  var result = "";
  var characters = '0123456789';
  for (var i = 0; i < length; i++) {
    result += characters[Math.floor(Math.random() * characters.length)];
  }
  result = result.match(/\d{1,4}/g).join("-");
  return result;
}

console.log(makeid(16));

这是我现在拥有的当前代码。

function makeid(length) {
  var result = "";
  var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
  for (var i = 0; i < length; i++) {
    result += characters[Math.floor(Math.random() * characters.length)];
  }
  result = result.match(/\d{1,4}/g).join("-");
  return result;
}

console.log(makeid(16));

我不想要输出。我希望输出在字母和数字中都可以使用，我不确定为什么它不会同时做！

原文

So I saw another solution on here with a problem I was having. Though the problem isn't completely solved for me.

This is the code that I found on here.

function makeid(length) {
  var result = "";
  var characters = '0123456789';
  for (var i = 0; i < length; i++) {
    result += characters[Math.floor(Math.random() * characters.length)];
  }
  result = result.match(/\d{1,4}/g).join("-");
  return result;
}

console.log(makeid(16));

And this is the current code I have now.

function makeid(length) {
  var result = "";
  var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
  for (var i = 0; i < length; i++) {
    result += characters[Math.floor(Math.random() * characters.length)];
  }
  result = result.match(/\d{1,4}/g).join("-");
  return result;
}

console.log(makeid(16));

The output is not want I want. I want the output to be in both Letters and Numbers and I'm not sure why it won't do both!

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

孤单情人 2025-02-19 12:13:53

这是因为您的match（）仅在寻找数字（\ d），而不是任何字符（。）：

function makeid(length) {
  var result = "";
  var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
  for (var i = 0; i < length; i++) {
    result += characters[Math.floor(Math.random() * characters.length)];

  }
  result = result.match(/.{1,4}/g).join("-");
  return result;
}

console.log(makeid(15));

您可以通过使用％操作员来摆脱慢匹配一起：

function makeid(length) {
  var result = "";
  var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
  for (var i = 0; i < length; i++) {
    result += characters[Math.floor(Math.random() * characters.length)];
    if (i+1 < length && !((i+1) % 4))
      result += "-";
  }
  return result;
}

console.log(makeid(16));

It's because your match() is only looking for digits ( \d ) and not any character ( . ):

function makeid(length) {
  var result = "";
  var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
  for (var i = 0; i < length; i++) {
    result += characters[Math.floor(Math.random() * characters.length)];

  }
  result = result.match(/.{1,4}/g).join("-");
  return result;
}

console.log(makeid(15));

And you can get rid of slow match all together, by using % operator:

function makeid(length) {
  var result = "";
  var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
  for (var i = 0; i < length; i++) {
    result += characters[Math.floor(Math.random() * characters.length)];
    if (i+1 < length && !((i+1) % 4))
      result += "-";
  }
  return result;
}

console.log(makeid(16));

回复收藏 0 原文

~没有更多了~