Question

// 5. Predict what the following code will print (write it down), then try it.
var myVariable = "global";
var myOtherVariable = "global";

function myFunction() {
var myVariable = "local";
return myVariable;
}

function myOtherFunction() {
myOtherVariable = "local";
return myOtherVariable;

javascript

Answer 1

// global variables

var myVariable = "global";          // variable contains a string "global"

var myOtherVariable = "global";     // variable contains a string "global"

// function to return a string which is "local"

// variable inside the function is local scope local variable

function myFunction() {

    var myVariable = "local";       // variable contains a string "global"

    return myVariable;              // return the variable

}

// function to return a string which is "local"

// variable inside the function is local scope local variable

function myOtherFunction() {

    myOtherVariable = "local";      // variable contains a string "global"

    return myOtherVariable;         // return the variable

}

// display the global vars

console.log("My global var: " + myVariable);

console.log("My other global var: " + myOtherVariable);

// function calls to display the returned local vars

console.log("My local var: " + myFunction());

console.log("My other local var: " + myOtherFunction());

I HAVE EXPLAINED THE CODE IN USING COMMENTS.

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