# Top skills in 10-12

1 lesson

+1 vote
2 lessons
+1 vote
1 lesson

1 lesson
Multi line comments/* Comment here */
Single line,Multi line/* Comment here */
Single line,Multi line<!– Comment here –>
Single line,Multi line# Comment here
XML tags comments/// XML tags displayed in a code comment

+1 vote
2 lessons
+1 vote
2 lessons
2 lessons

+1 vote
1 lesson

In a browser, enter the [url to the ftp-server]/spaceinvader/index.html
Read file js/spaceinvaders.js and see how input from keyboard is handled and control the starship in the coordinate system of the screen.
Take a backup copy of the file.
Comment out some things and edit some small things. Save, upload and see your own first changes to your new unique games.
When you are happy, celebrate and send the url to your friends!
Share images and screenshots in the comments below.

1 lesson
x += 3 means that the value of x is increased with 3. So if x was 4 previously, then it is 4+3, i.e 7 now. It is a shorter form than writing x = x+3 Many coding languages have = is used to set a value to a variable. But == is used for a comparison, e.g. in if(x == 3){ do something }

+1 vote
1 lesson

1 lesson

Here you can practice writing python code online and see the result.
Write python code and test it online

fruits = ["apple""banana""cherry"]
for x in fruits:
print(x)
if x == "banana":
break

Reed more

i = 1
while i < 6:
print(i)
i += 1

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