Objects and JSON
Comes up in: Recruiter screen
This concept is being written. It gets the full five steps — explanation, predict, interview angle, practice with tests, and review cards. Here is exactly what it will cover, so you can study it elsewhere in the meantime.
What it covers
- object literals
- dot vs bracket access
- adding/deleting keys
- nesting
Object.keys/values/entries- destructuring and spread (intro)
- reference vs copy
- JSON format,
JSON.stringify/parse
Words you will know
What you will practise
- model a user profile
- deep vs shallow copy surprise
Interview questions this answers
- How do you copy an object? What is a shallow copy?