Total 20 question (100 marks)
- 1. What is the result of the block code below? function getNumber(x){ delete x; return x; } var result = getNumber(1); alert(result);
- 2. What loop bellow is the correct syntax?
- 3. What is the result of the below code? while (i < 5) { i++; if (i == 3) {
- 4. What is the result of the below block code? var a = 1; alert(a++);
- 5. What is property help get or set the content of a div tag in javascript?
- 6. Which is the right syntax that allows import an external file javascript into an HTML page?
- 7. What is the alert value of the below code? var a = parseInt("3abc1"); var b = 3; alert(a * b)
- 8. Select the correct option when While loop bellow is finished? var i = 2 ; while (i <= 10) {
- 9. How to declare a variable in javascript?
- 10. How to check the age variable is a number or not? var age ="12abc";
- 11. Select the correct IF condition below of Javascript.
- 12. What function help convert a string to a number?
- 13. Does javascript help change some value of the table in any Database?
- 14. What is the output of the block code below? var a =+ '10'; var b = 2 alert(a + b);
- 15. What is the result of a variable when execute command bellow? var a = "I'm " + true; alert(a);
- 16. What is the result of the below code? var i = 2; var count = 0; for (; i < 6;
- 17. What is the output of this program? var y = (function (x){ var x= 1 + x; return x;
- 18. How many kinds of loops in Javascript?
- 19. What is the correct syntax to comments one line code in JavaScript?
- 20. How to insert a multi-line comment in JavaScript?