debugger / breakpoints

$0

debug()

option + cmd + f

monitor / monitorEvents

angular.element();

angular.element().scope();

angular.element().injector();

angular.element()
  .scope().$apply();

if (ngDevMode) {
  // Angular adds extra
  // code into the framework
  // so that additional
  // tooling and info can
  // have more info about
  // data-structures...
}

// .debug is appended

someObject.debug

someArray.debug

someDataStructure.debug

const enum UserIndex {
  FirstNamePosition = 0,
  LastNamePosition = 1,
  AgePosition = 2
}

interface User extends Array<number|string> {
  [UserIndex.FirstNamePosition]: string;
  [UserIndex.LastNamePosition]: string;
  [UserIndex.AgePosition]: number;
}

function getFullName(user: User) {
  return user[UserIndex.FirstNamePosition] +
    user[UserIndex.LastNamePosition];
}

function isOlderThan(user: User, age: number) {
  return user[UserIndex.AgePosition] > age;
}

function g(u) {
  return u[0] + u[1]
}

function i(u, n) {
  return u[2] > n
}