The use of wrapper objects for primitive types is gratuitous, confusing and dangerous. If you use a wrapper object constructor for type conversion, just remove the `new` keyword, and you'll get a primitive value automatically. If you use a wrapper object as a way to add properties to a primitive, you should re-think the design. Such uses are considered bad practice, and should be refactored. Finally, this rule reports usages of wrapper objects in type declaration section.

## Noncompliant Code Example

    let x = new Number("0"); // Noncompliant
    if (x) {
      alert('hi');  // Shows 'hi'.
    }

    function log(msg: String) { // Noncompliant
      console.log(msg);
    }

## Compliant Solution

    let x = Number("0");
    if (x) {
      alert('hi');
    }

    function log(msg: string) {
      console.log(msg);
    }