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Using Optional Chaining for checking for existence of nested Object key

Anjanesh LekshminarayananAnjanesh Lekshminarayanan
Sep 7, 20221 min read

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 =...

reduce function

Anjanesh LekshminarayananAnjanesh Lekshminarayanan
Jul 4, 20221 min read

Count the number of times a value of a particular type in an object exists · I hope this code on how to understand the reduce function in JavaScript is...

Converting a traditional function to an arrow function

Anjanesh LekshminarayananAnjanesh Lekshminarayanan
Jul 1, 20222 min read

If you're old like me (in my 40s) and got into JavaScript way before ES6 (2015) but didn't use the new syntax that came out post 2015 like arrow...