The following answers are correct: www.w3school.com.cn
1. Which of the following HTML elements can we place Javascript code in?
Your answer: <script>
2. What is the correct Javascript syntax for writing “Hello World”?
Document. write(“Hello World”)
3. Where is the correct position to insert Javacript?
Your answer: both the <body> part and the <head> part are acceptable
4. What is the correct syntax for referencing an external script named “xxx.js”?
<script SRC =”xxx.js”>
5. Must external scripts contain <script> tags?
Your answer: No
6. How do I write “Hello World” in the warning box?
Alert (“Hello World”)
7. How do I create functions?
Function myFunction()
8. How to call function named “myFunction”?
MyFunction ()
9. How to write a conditional statement that executes some statements when I equals 5?
If (I ==5)
10. How to write conditional statements that execute statements when I is not equal to 5?
Your answer: If (I! = 5)
11. How many different types of loops are there in JavaScript?
Your answer: Two. For loop and while loop.
12. How does the for loop start?
For (I = 0; i <= 5; i++)
13. How do I add comments to JavaScript?
//This is a comment
14. What is the JavaScript syntax for inserting multi-line comments?
解 析 : /*This comment has more than one line*/
15. What is the correct way to define a JavaScript array?
Var TXT = new Array(“George”,”John”,”Thomas”)
16. How do I round 7.25 to the nearest whole number?
Your answer: Math.round(7.25)
17. How do I find the largest number of 2 and 4?
Your answer: math.max (2,4)
18. What is the JavaScript syntax for opening a new window named “window2”?
Your answer: window.open(“www.w3school.com.cn”,”window2″)
19. How do I put a message in the status bar of the browser?
Window. status(“put your message here”) window.status(“put your message here”) window.status(“put your message here”)
Window. status = “put your message here”
20. How do I get the name of the client browser?
Your answer: Navigator.appname