Total 20 question (100 marks)
- 1. Javascript and Java are same and nothing different between them.
- 2. What is function help execute command javascript in plain text?
- 3. What does the bellow function do? function doSomething(val) { return val ? 1 : 2; }
- 4. Which statements below are correct about Javascript?
- 5. How many kinds of loops in Javascript?
- 6. The external JavaScript file must contain the <script> tag.
- 7. How to check the age variable is a number or not? var age ="12abc";
- 8. What is the result of the below block code? var a = 1; alert(++a);
- 9. What is the result of the block code below? function first() { window.age = 15; } function second() {
- 10. What is the result of a variable when execute command bellow? var a = "I'm " + true; alert(a);
- 11. Which company has developed Javascript?
- 12. What is the result of the below code block? alert(age); let age = 10;
- 13. What is the output of this program? var y = (function (x){ var x= 1 + x; return x;
- 14. Select output of below block code var i = 0; while (i < 0) { console.log("hi"); }
- 15. What is the correct syntax to comments one line code in JavaScript?
- 16. What is the result of the below code? while (i < 5) { i++; if (i == 3) {
- 17. How can we write anything into web page in Javascript?
- 18. What function help convert a string to a number?
- 19. What is the result of "variable"? var variable; if (""){ variable = true; } else { variable = 55; }
- 20. How do you display a message box that says "Hello World"?