Mastering Default Values with Nullish Coalescing (??)

The article explains how the ?? operator offers a more precise way to assign default values compared to the traditional || operator. While || treats any falsy value (like 0, false, or "") as a trigger to apply the default, ?? only considers null and undefined as falsy. This distinction ensures that valid falsy values, such as 0 or false, are not mistakenly replaced, leading to more predictable and reliable code.