TypeScript: casting HTMLElement

Question

Does anyone know how to cast in TypeScript?

I\'m trying to do this:

var script:HTMLScriptElement = document.getElementsByName(\"script\")[0];
alert(s         


        

Answer 1

Since it's a NodeList, not an Array, you shouldn't really be using brackets or casting to Array. The property way to get the first node is:

document.getElementsByName(id).item(0)

You can just cast that:

var script =  document.getElementsByName(id).item(0)

Or, extend NodeList:

interface HTMLScriptElementNodeList extends NodeList
{
    item(index: number): HTMLScriptElement;
}
var scripts =  document.getElementsByName('script'),
    script = scripts.item(0);