d3 and typescript

[Ulrich Sinn]

webstorm flags errors inside of my typescript file. It compiles fine. Should the correct type be found in "d3.d.ts"?

Do I have to cast 'this' first to <EventTarget>? I'm kind of new to typescript, so I apologize for asking the wrong question.

declare module D3 {
    export interface Selectors {
        /**
        * Select an element from the current document
        */
        select: {
            /**
            * Returns the empty selection
            */
            (): Selection;
            /**
            * Selects the first element that matches the specified selector string
            *
            * @param selector Selection String to match
            */
            (selector: string): Selection;
            /**
            * Selects the specified node
            *
            * @param element Node element to select
            */
            (element: EventTarget): Selection;
        };

[Ulrich Sinn]

Answering my own question, yes it does remove the compiler error.

.on("click", function (d, i) {
    d3.selectAll(".plusVertical").classed("hidden", false);
    var evt = d3.event;
    var evtTarget:EventTarget = <EventTarget>this;
    var sel = d3.select(evtTarget);
    sel.selectAll(".plusVertical").classed("hidden", true);
    owner.dispatchPlusClick(d, i, evt)
});