What does `Number.isNaN(NaN)` return compared to the global `isNaN(NaN)`?

Question

JavaScript Developer — Easy

What does `Number.isNaN(NaN)` return compared to the global `isNaN(NaN)`?

Accepted Answer

Number.isNaN(NaN) returns true without coercion, while global isNaN(NaN) also returns true for NaN but behaves differently with non-numeric strings. This distinction is important for accurately checking for NaN values in JavaScript.