vars.js

//Hoisting

y = 80; // Assign 5 to x
x=y+5 // sum up 5 with the value of y
var y; // Declare y

//JavaScript only hoists declarations, not initializations.


var name = "Abel";

(function () {
    // Outputs: "Original name was undefined"
    console.log("Original name was " + name);

    var name = "Multithread";

    // Outputs: "New name is Underhill"
    console.log("New name is " + name);
})();


//function hoisting

// Outputs: "Yes!"
isItHoisted();

function isItHoisted() {
    console.log("Yes!");
}