BestFriends.js
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BestFriends.js is a two-dimensional esoteric programming language invented in 2006 by David Millar with the goal of creating an esoteric javascript library.
A BestFriends.js script is very similar to Brainfuck. It has almost exactly the same commands, except for the addition of a few new ones.
Instructions
The code is written in your JavaScript like this:
BF(command string,input string);
Example, creates a popup with the letter 'd' on it:
var c = "+++++[>+++++<-]>}|" + "[<++++>-]<.@ {"; alert(BF(c,"input"));
BestFriends.js has the following commands:
Command | Description |
---|---|
+
|
Add 1 to current memory cell. |
-
|
Subtract 1 from the current memory cell. |
>
|
Move the memory pointer to the right. |
<
|
Move the memory pointer to the left. |
[
|
Start a loop. You CANNOT use nested loops in BestFriends. |
]
|
End of a loop. If current memory cell is 0, continues program, otherwise restarts loop. |
{
|
Turns the program pointer 90 degrees left (anticlockwise). |
}
|
Turns the program pointer 90 degrees right (clockwise). |
!
|
Clear output string. |
:
|
Run eval() on output string. |
@
|
Ends the script and returns the output string. |
|
|
Separates rows of commands. |
,
|
Puts the first character of the input string in the current memory cell. As of the first version, this command does not work. The problem is being looked at carefully. |
.
|
Writes the ascii character of the current memory cell to the output string. |
Anything else is a comment. |