Add HTMLTemplateDocument

[emilgpa]

Fix microsoft/TypeScript#5199

[emilgpa]

But I need to add the following, right?:

declare var HTMLTemplateElement: {
  prototype: HTMLTemplateElement;
  new(): HTMLTemplateElement;
}

But I don't know how to do it by addedTypes.json... :(

[zhengbli]

@DasHaus I'm adding support for those. Will keep you updated.

[emilgpa]

👍

[zhengbli]

@DasHaus The new bit is merged in. So to add constructors, you need to add a constructorSignatures string array property to your json object. Also, as this is a DOM type that should not be added to webworker definition, you may want to add a flavor property that has the value Web.

Your added json content should be something like:

    {
        "kind": "interface",
        "name": "HTMLTemplateElement",
        "flavor":  "Web",
        "extends": "HTMLElement",
        "constructorSignatures": [
            "new(): HTMLTemplateElement"
        ],
        "properties": [
            {
                "name": "content",
                "type": "DocumentFragment"
            }
        ]
    }

[emilgpa]

Something I did wrong ... I'm a newbie with git ... :(

I created a new pull request