AI solution for JavaScript Quiz on BFE.dev
93. string

The code below outputs:

bfe.dev

The reason for this is that although a is declared as a string, strings in JavaScript are immutable, meaning that once a string value is assigned to a variable, its contents cannot be changed. Therefore, attempting to modify a's first character with a[0] = 'c' has no effect, and the original value of a, "bfe.dev", remains unchanged when logged to the console.