https://www.codecademy.com/courses/introduction-to-javascript/lessons/objects/exercises/for-in
for (let crewMember in spaceship.crew) {
console.log(${spaceship.crew[crewMember].name}: ${spaceship.crew[crewMember].degree})
};
};
in the example above there is an example that prints the obj name and degree properties , but how ? why is let not assigned a value?
for (let crewMember in spaceship.crew) {
console.log(`${spaceship.crew[crewMember].name}: ${spaceship.crew[crewMember].degree}`);
};
The for loop iterates over all the properties in spaceship.crew and in each iteration, the property is assigned as a string to the loop variable crewMember.
For the exercise, in the first iteration crewMember will be assigned the string "captain". In the next iteration, crewMember will be assigned the string "chief officer". Similarly, in the next iterations, the variable will be assigned the strings "medic" and "translator".
As for the “Bracket Notation” for accessing values in objects, see this post:
https://discuss.codecademy.com/t/faq-objects-looping-through-objects/371716/177
If you still have doubts about the topic, share your thoughts on what you find confusing.
3 Likes