2.js

// Predict and explain first BEFORE you run any code..
// this function should square any number but instead we're going to get an error

// =============> write your prediction of the error here
// You cannot put a number as a function parameter name

//function square(3) {
    //return num * num;
//}

// =============> write the error message here
// SyntaxError: Unexpected number
// =============> explain this error message here
// The "Unexpected number" error arises when a numeral is improperly positioned or used within your JavaScript code.
// Finally, correct the code to fix the problem

// =============> write your new code here
function square(num) {
    return num * num;
}