Using Optional Chaining for checking for existence of nested Object key
In PHP we can do use isset() for checking the existence of a deeply nested array's key since the beginning of time :
<?php
$p1 = "a9bedbd81019b877";
$p2 = "47bd5f64f7be5578";
$obj =
[
'people' =>
[
$p1 =>
[
'first...
javascript.co.in1 min read