`doctype`

Warns when doesn't including DOCTYPE. Also warns when included obsolete type.

❌ Examples of incorrect code for this rule

<html>
  <head>
    <title>Any Page</title>
  </head>
  <body>
    <h1>Any Page</h1>
    <p>Anonymous</p>
  </body>
</html>

✅ Examples of correct code for this rule

<!doctype html>
<html>
  <head>
    <title>Any Page</title>
  </head>
  <body>
    <h1>Any Page</h1>
    <p>Anonymous</p>
  </body>
</html>

Interface

{
  "doctype": "always"
}

Value	Default	Description
`"always"`	✓	Warns when doesn't declare Doctype. Ignore when document is fragment.

{
  "doctype": {
    "options": {
      "denyObsoleteType"?: boolean
    }
  }
}

Property	Type	Default Value	Description
`denyObsoleteType`	`boolean`	`"true"`	Warns that the type is not `<!doctype html>`.

error