So Variable c inside the function addNumbrr code block cannot be called again outside the function code block?

Question

function addNumbers(a, b) {
var c = a+b;
return c;
}
document.write( addNumbers(40, 2) );

Answer 1

yes you cannot !
var c was declared & tied to the function's scope(addNumbers in this case) and can be called only in that function,

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https://code.sololearn.com/WSCw1DM58IDD/?ref=app