Variable name contain following type of characters -1. Alphabet2. Digits3. Underscore4. Special ChractersSelect the correct option.

A. 3 4 2

B. 4 3 1

C. 1 2 3 4

D. 1 2 3

View Answer

Correct Answer :
1 2 3

Explanation :
No Explanation available for this question

Related Questions

Initialization of variable can be done by writing _____ operator in between variable name and operand value.
Multiple Declarations of variables are separated by ___________ symbol
Underscore can be used as first letter while declaring variable in JavaScript.
```
var var1 = "Pritesh";
```
Above variable can store value of type.

<!DOCTYPE html>
<html>
    <body>
        <script>
            var x = 5;
            var y = 6;
            var z = 5 + 6;
            document.write(x + "<br>");
            document.write(y + "<br>");
            document.write(z + "<br>");
        </script>
    </body>
</html>

Guess output of the following code.

<!DOCTYPE html>
<html>
    <body>
        <script>
            var x = "5";
            var y = 6;
            var z = x + y;
            document.write(x + "<br>");
            document.write(y + "<br>");
            document.write(z + "<br>");
        </script>
    </body>
</html>

Guess output of the following code.

Variable declared without a value will have the value ______________.Eg.
```
var num;
```

<!DOCTYPE html>
<html>
    <body>
        <script>
            var num1 = 1;
            var num2 = 1;
            var num3 = "1" + num1 + num2;
            document.write(num1 + "<br>");
            document.write(num2 + "<br>");
            document.write(num3 + "<br>");
        </script>
    </body>
</html>

Guess output of the following code.

<html>
    <body>
        <script>
            var x = 12.45;
            var y = 1;
            var z = '8' + x + y;
            document.write(z + "<br>");
        </script>
    </body>
</html>

Value of Z is

<html>
    <body>
        <script>
            var name = "John Doe";
            var name = 123;
            document.write(name + "<br>");
        </script>
    </body>
</html>

Is it possible to change the type of value after re-assignment.

A to Z Exams

Variable name contain following type of characters -1. Alphabet2. Digits3. Underscore4. Special ChractersSelect the correct option.

Related Questions

Interview Questions