var x=21;<br /> var myFunction = function(){<br /> console.log(x);<br /> var x= 20;<br /> };<br /> myFuntion();

var f = function () {<br /> x = x + “b”;<br /> if (x.length > 100) {<br /> let x = “a”;<br /> }<br /> console.log (x);<br /> }<br /> f ();

<br /> var x= ‘hi’;<br /> function myfunction()<br /> {<br /> console.log(x);<br /> var x = ‘hello’;<br /> }<br /> myfunction();

function myFunction(a) {<br /> console.log(a);<br /> }</p> <p>myFunction(12);