> For the complete documentation index, see [llms.txt](https://docs.wornoffkeys.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wornoffkeys.com/commands/correct-argument-usage.md).

# Correct argument usage

{% embed url="<https://youtu.be/_67r4wq23BA?t=254>" %}

You can specify the exact arguments and the minimum/maximum number of arguments for each command. If the user provides an incorrect number of arguments then WOKCommands will automatically tell them the correct usage based off of the command properties you provided. Here is an example:

{% tabs %}
{% tab title="JavaScript" %}
{% code title="add.js" %}

```javascript
import { CommandType } from "wokcommands";

module.exports = {
  description: "Adds numbers together",
  type: CommandType.BOTH,

  minArgs: 2,
  maxArgs: 2,
  expectedArgs: "<num1> <num2>",

  callback: ({ args }) => {
    const sum = args.reduce((acc, cur) => {
      return acc + Number(cur)
    }, 0)

    return `The sum is ${sum}`
  },
}
```

{% endcode %}
{% endtab %}

{% tab title="TypeScript" %}
{% code title="add.ts" %}

```typescript
import { CommandType, CommandObject, CommandUsage } from "wokcommands";

export default {
  description: "Adds numbers together",
  type: CommandType.BOTH,

  minArgs: 2,
  maxArgs: 2,
  expectedArgs: "<num1> <num2>",;

  callback: (options: CommandUsage) => {
    const { args } = options

    const sum = args.reduce((acc, cur) => {
      return acc + Number(cur)
    }, 0)

    return `The sum is ${sum}`
  },
} as CommandObject;
```

{% endcode %}
{% endtab %}
{% endtabs %}

If the user runs `!add` or `!add 5` your bot will respond with `Correct syntax: !add <num1> <num2>`. If the user runs `!add 5 10` it will then respond with `The sum is 15`.