In JavaScript, the name of a function is defined after the function keyword and before the parentheses that enclose its parameters.

Function Name: The function name is the identifier used to call the function. It is defined immediately after the function keyword.

Usage Example:

function square(number) {

return number * number;

}

In this example, the name of the function is square.

References:

MDN Web Docs on Functions

ECMAScript Language Specification