The nullish coalescing operator (??) returns the second operand (op2) if the first operand (op1) is null or undefined. Otherwise, the 'res' variable will contain 'op2'.The above syntax is similar to the below c
Using Nullish Coalescing in JavaScript The nullish coalescing operator (??) returns its left operand if it's not nullish; otherwise, it returns its right operand. Confused? Let's break that down. A "nullish" value is either null or undefined. So the ?? operator checks if the left value ...
An introduction to this feature of JavaScript: nullish coalescingA powerful operator available in JavaScript is the nullish coalescing operator: ??.Have you ever used || to set a default value if a variable was null or undefined?For example, like this:...