return 在 if 语句中抛出错误

Question

I have an if statement with return s in it that throw an error when executed.

var booleanStatement = true;

if ( booleanStatement ){
    return true;
} else {
    return false;
}

This should return true but it instead throws an error. How can I get this statement to return true?

Answer 1

You need a function for using the statement return .

The return statement ends function execution and specifies a value to be returned to the function caller.

 var array = [0, 1, 2, , 4, 5]; function x() { if (array[3] === 3) { return true; } else { return false; } } console.log(x());