Code Demo

Let you insert code demos in your Markdown file.

Settings

TS

// .vuepress/config.ts
import { defineUserConfig } from "vuepress";
import { hopeTheme } from "vuepress-theme-hope";

export default defineUserConfig({
  theme: hopeTheme({
    plugins: {
      mdEnhance: {
        demo: true,
      },
    },
  }),
});

JS

// .vuepress/config.js
import { hopeTheme } from "vuepress-theme-hope";

export default {
  theme: hopeTheme({
    plugins: {
      mdEnhance: {
        demo: true,
      },
    },
  }),
};

Syntax

You should use the following syntax:

::: [type]-demo Optional title text

```html
<!-- ↑ use available ones -->
<!-- your code here -->
<!-- you can have multiple code block, but each language must appear only once. -->
```

```json
// json block is for config
{
  // your config here (optional)
}
```

:::

Tips

The json block is optional, for config please see config.

The plugin support three types:

• normal
• vue
• react

Normal

::: normal-demo Optional title text

```html
<!-- html code -->
```

```js
// js code
```

```css
/* css code */
```

```json
// config (optional)
{
  "jsLib": [
    ...
  ],
  "cssLib":[
    ...
  ]
}
```

:::

Vue

::: vue-demo Optional title text

```vue
<!-- ↑ You can also use `html` -->
<template>
  <!-- vue template -->
</template>
<script>
export default {
  // vue component
};
</script>
<style>
/* css code */
</style>
```

```json
// Config (Optional)
```

:::

React

::: react-demo Optional title text

```js
// your script, exporting your react component through `export default`
```

```css
/* Your css content */
```

```json
// Config (Optional)
```

:::

Available Languages

You can use different language in your demo block.

When you set language which can not run on browsers, since the plugin is not able to resolve them, so demo display will be disabled. The plugin will only show the code and provide you a button to open it in CodePen.

Available HTML languages:

• "html" (default)
• "slim"
• "haml"
• "markdown"

You can also use md in code block.

Available JS languages:

• "javascript" (default)
• "coffeescript"
• "babel"
• "livescript"
• "typescript"

You can also use js, ts, coffee and ls in code block.

Available CSS languages:

• "css" (default)
• "less"
• "scss"
• "sass"
• "stylus"

You can also use styl in code block.

Demo

Normal demo

Demo

<h1>VuePress Theme Hope</h1>
<p>is <span id="very">very</span> powerful!</p>

document.querySelector("#very").addEventListener("click", () => {
  alert("Very powerful");
});

span {
  color: red;
}

::: normal-demo Demo

```html
<h1>VuePress Theme Hope</h1>
<p>is <span id="very">very</span> powerful!</p>
```

```js
document.querySelector("#very").addEventListener("click", () => {
  alert("Very powerful");
});
```

```css
span {
  color: red;
}
```

:::

A Vue Composition Demo

Vue demo 1

<template>
  <div class="box">
    <code>vuepress-theme-hope</code> is
    <span @click="handler">{{ message }}</span
    >!
  </div>
</template>
<script>
const { ref } = Vue;

export default {
  setup() {
    const message = ref("powerful");

    const handler = () => {
      message.value = "very " + message.value;
    };

    return {
      message,
      handler,
    };
  },
};
</script>
<style>
.box span {
  color: red;
}
</style>

::: vue-demo Vue demo 1

```vue
<template>
  <div class="box">
    <code>vuepress-theme-hope</code> is
    <span @click="handler">{{ message }}</span
    >!
  </div>
</template>
<script>
const { ref } = Vue;

export default {
  setup() {
    const message = ref("powerful");

    const handler = () => {
      message.value = "very " + message.value;
    };

    return {
      message,
      handler,
    };
  },
};
</script>
<style>
.box span {
  color: red;
}
</style>
```

:::

A Vue Option Demo

Vue demo 2

<template>
  <div class="box">
    <code>vuepress-theme-hope</code> is
    <span @click="handler">{{ message }}</span
    >!
  </div>
</template>
<script>
export default {
  data: () => ({ message: "powerful" }),
  methods: {
    handler() {
      this.message = "very " + this.message;
    },
  },
};
</script>
<style>
.box span {
  color: red;
}
</style>

::: vue-demo Vue demo 2

```vue
<template>
  <div class="box">
    <code>vuepress-theme-hope</code> is
    <span @click="handler">{{ message }}</span
    >!
  </div>
</template>
<script>
export default {
  data: () => ({ message: "powerful" }),
  methods: {
    handler() {
      this.message = "very " + this.message;
    },
  },
};
</script>
<style>
.box span {
  color: red;
}
</style>
```

:::

A function-based React Demo

React demo 1

const { useState } = React;

export default () => {
  const [message, setMessage] = useState(" powerful");

  const handler = () => {
    setMessage(` very${message}`);
  };

  return (
    <div className="box">
      <code>vuepress-theme-hope</code> is
      <span id="powerful" onClick={handler}>
        {message}
      </span>!
    </div>
  );
};

.box #powerful {
  color: blue;
}

::: react-demo React demo 1

```js
const { useState } = React;

export default () => {
  const [message, setMessage] = useState(" powerful");

  const handler = () => {
    setMessage(` very${message}`);
  };

  return (
    <div className="box">
      <code>vuepress-theme-hope</code> is
      <span id="powerful" onClick={handler}>
        {message}
      </span>!
    </div>
  );
};
```

```css
.box #powerful {
  color: blue;
}
```

:::

A class-based React Demo

React demo 2

export default class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = { message: " powerful" };
  }
  handler() {
    this.setState((state) => ({
      message: ` very${state.message}`,
    }));
  }
  render() {
    return (
      <div className="box">
        <code>vuepress-theme-hope</code> is
        <span id="powerful" onClick={this.handler.bind(this)}>
          {this.state.message}!
        </span>
      </div>
    );
  }
}

.box #powerful {
  color: blue;
}

::: react-demo React demo 2

```js
export default class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = { message: " powerful" };
  }
  handler() {
    this.setState((state) => ({
      message: ` very${state.message}`,
    }));
  }
  render() {
    return (
      <div className="box">
        <code>vuepress-theme-hope</code> is
        <span id="powerful" onClick={this.handler.bind(this)}>
          {this.state.message}!
        </span>
      </div>
    );
  }
}
```

```css
.box #powerful {
  color: blue;
}
```

:::

A demo using language not supported by browsers

Normal demo

# Title

is very powerful!

const message: string = "VuePress Theme Hope";

document.querySelector("h1").innerHTML = message;

h1 {
  font-style: italic;

  + p {
    color: red;
  }
}

::: normal-demo Normal demo

```md
# Title

is very powerful!
```

```ts
const message: string = "VuePress Theme Hope";

document.querySelector("h1").innerHTML = message;
```

```scss
h1 {
  font-style: italic;

  + p {
    color: red;
  }
}
```

:::