JS.15.07 Senior

JSON.stringify (subset) and deepEqual

Comes up in: Coding

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

stringify rules (undefined/functions/symbols omitted in objects, null in arrays, toJSON, cycles throw)
deepEqual (NaN, ±0, Dates, arrays vs objects, cycles)

Words you will know

—

What you will practise

implement both

Interview questions this answers

Implement deepEqual.