This is horrible and I'm very sorry.
x can be replaced with any literal.
xx_+(Your comment goes here)+
Only works if the stack only constitutes the multipliers. //_+(TODO: Replace this with a snippet without the restriction.)+
Divide by constant
Divides by n when there is n
Warning: If the number is not divisible by n, the code will loop infinitely. //_+(TODO: Replace this with a snippet without the restriction.)+
Only works when there are no zeroes on the stack.
Read all characters into memory
Works if EOF is -1.
Stores the entirety of the input as individual ASCII values onto the stack
Input a decimal number
0 _+( +0_+$!+!!+!+++ _*)
This snippet reads a number that ends with a newline. (To end with a space or other characters, replace all newlines in the snippet.) It needs a 0 on the stack top to work properly, and it leaves an extra 0 on the top of the stack.
Turns the top of the stack to
0 if even, and
1 if odd.