debugger Statement Usage

function debuggableWrapper(fn) {
  return function(...args) {
    debugger;
    return fn.apply(this, args);
  };
}

Function composition
Function decoration
This code demonstrates function decoration with debugging: 1) Wraps a function with debugging capability, 2) Preserves the original function's context and arguments, 3) Adds debugging without modifying the original function, 4) Enables reusable debugging logic, 5) Follows functional programming principles, 6) Useful for debugging callback functions, 7) Maintains function composition capability, 8) Common pattern for adding debugging to existing functions.
Function currying
Function binding