this Keyword in Different Contexts

function Person(name) {
  this.name = name;
}

const john = Person('John');

Missing return statement
Incorrect parameter usage
Missing new keyword
The code lacks the 'new' keyword which causes issues: 1) Without 'new', 'this' binds to global object, 2) Creates unintended global variables, 3) Returns undefined instead of new object, 4) Constructor pattern requires 'new' for proper 'this' binding, 5) 'new' creates new object and sets proper prototype, 6) Common source of bugs in constructor functions.
Wrong function name