BASIC COMPUTER PROGRAMING CLEARING THE BUFFER
When you press Enter in a BASIC computer program, the computer stores
it and acts on it when it gets a chance. The reason for this is there may be a lag
in responding to typing and the computer does not want to lose information.
This can cause a problem. If you press ENTER several times the computer will
do it again and again even though you meant for only one repetition to be done.
There are times you want to clear the buffer, clear commands to get a new clean
chance to enter new commands. This is a way to do this:
REPEAT
X$=INKEY$(0)
UNTIL X$=""
EXPLAINATION:
REPEAT gets an action UNTIL a condition is met.
INKEY$(0) takes information from the buffer(keystrokes you make or have made)
When all this information is used up, the buffer is cleared.
X$="" means the buffer is cleared.
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