Imbriquées à l'autre, s'déclaration shotrthand

si imbriquées déclaration

if (condition) {

  if (anotherCondition) {
    // executes if both condition and anotherCondition are true
  } else {
    // executes if condition is true and anotherCondition is false
  }

} else {
  // executes if condition is false
}