Total 20 question (100 marks)
- 1. What is the purpose of Javascript?
- 2. Which is the option below is correct to use WHILE loop?
- 3. Where does the HTML page allow you to write javascript?
- 4. What is the result of the below block code? var a = 1; alert(a++);
- 5. The external JavaScript file must contain the <script> tag.
- 6. What is property help get or set the content of a div tag in javascript?
- 7. Which company has developed Javascript?
- 8. What is the result of the below block code? var a = 1; alert(++a);
- 9. How to insert a multi-line comment in JavaScript?
- 10. What is the value of x after finish below command? var x = 4 ; for (i = 0; i
- 11. What is isNaN() function in Javascript?
- 12. What is different between let and var in Javascript?
- 13. What is the alert value of the below code? var a = parseInt("3abc1"); var b = 3; alert(a * b)
- 14. What is the mean of += operator in the below code? var fullname = "Jonh"; fullname += " Hug"; alert(fullname);
- 15. What is the result of the below code? while (i < 5) { i++; if (i == 3) {
- 16. How to comment on multiple line codes in Javascript?
- 17. Which is the HTML tag allows write javascript code?
- 18. What is the output of this program? var fn22 = 1; function gn22() { if(!fn22) { var fn22
- 19. Select the correct output of some code below: var age = 10; if(age > 5){ alert("1"); }else if(age < 20){ alert("2"); }
- 20. Which is the attribute of <script> tag contains a path of external javascript file name xxx.js?