Run results for: JS delete vs undefined vs null

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:101.0) Gecko/20100101 Firefox/101.0

Browser: Firefox 101

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Script Preparation code:

var payload = {}
for (let i = 0; i < 1000; i++) {
  payload[i] = i
}

Tests: