TypeScript is throwing an error because a value has been declared but never actually used in the

private tree_widget: ITreeWidget;
private $ghost: JQuery | null;
private drag_element: DragElement | null;
private previous_ghost: IDropHint | null;
private open_folder_timer: number | null;

constructor(tree_widget: ITreeWidget) {
    this.tree_widget = tree_widget;

    this.hovered_area = null;
    this.$ghost = null;
    this.hit_areas = [];
    this.is_dragging = false;
    this.current_item = null;
}

I am encountering an issue with my code while building the application in Visual Studio 2017.

jquerytypescript

Answer №1

This class declaration presents several issues:

The variables hovered_area, hit_areas, is_dragging, and current_item are not defined as properties of the class (unless they are omitted from the provided code snippet).

In relation to the warning about "variable is declared but never read," the TypeScript compiler (tsc) is indicating that the variable has been created, given a value, but ultimately remains unused.

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