function a(string) {
string = string.toLowerCase().split(" ");
return string;
}
a("i lOve jS");
console.log(typeof (string));
why does it give me undefined?
function a(string) {
string = string.toLowerCase().split(" ");
return string;
}
a("i lOve jS");
console.log(typeof (string));
why does it give me undefined?
string
doesn’t exist outside the function (a
) scope.
Like ghukahr said, the “string” doesn’t exist outside of function’s scope.
You can put your console.log inside the function, or store the function’s return value inside a variable, like this:
Change
a("i lOve jS");
console.log(typeof (string));
to
const variable = a("i lOve jS");
console.log(typeof variable) // you don't need to put brackets around variable