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@nicolaz/qrcode

v2.0.4

Published

A QRCode generator Based on JavaScript

Downloads

2,110

Readme

@nicolaz/qrcode

跨浏览器的 JavaScript 版 QRCode 生成库。Fork 自 QRcode,使其支持 ESM 环境。

安装

npm i @nicolaz/qrcode

使用

import QRCode from '@nicolaz/qrcode';

原生 JavaScript 中

new QRCode(document.getElementById('qrcode'), 'http://www.baidu.com');

React

function QRCode({ url }) {
  const el = useRef(null);
  useEffect(() => {
    new QRCode(el.current, url);
  }, []);

  return (
    <div ref={el} className="qrcode" />
  );
}

API

构造函数参数

Element

Type: HTMLElement | String

如果是 String 则认为是元素的 ID 选择器

Options

Type: Object | String

如果是 Object 则认为是一个配置对象:

| 属性 | 描述 | 默认值 | | ------------ | ------------- | ----------------------- | | text | QRCode 数据源 | | | width | 渲染宽度 | 256 | | height | 渲染高度 | 256 | | colorDark | 前景色 | "#000000" | | colorLight | 背景色 | "#ffffff" | | correctLevel | 容错级别 | QRCode.correctLevel.H |

QRCode.correctLevel
  • QRCode.correctLevel.L
  • QRCode.correctLevel.M
  • QRCode.correctLevel.Q
  • QRCode.correctLevel.H

实例方法

qrcode.clear()

清除 QR code

qrcode.makeCode(text)

重新渲染另一个 QR code

License

MIT © nicolaszhao