OP_2DROP ​

OP_2DROP is used to discard the top two items from the stack.

Operation ​

1. Pop the top item from the stack.
2. Pop the next item from the stack.

Use Cases ​

• Discarding Temporary Data: In scripts where temporary values are pushed onto the stack for interim calculations, OP_2DROP can be used to remove them once they are no longer needed.

Notes ​

• This opcode is part of a family of opcodes (OP_DROP, OP_2DROP, OP_2DUP, OP_3DUP, and a few others) designed for stack item management.

Examples ​

Example 1 ​

Removing temporary values after use:

# ASM script
OP_1 OP_2 OP_2DROP

# Raw script
51526d

# Stack (before OP_2DROP)
2 1

# Stack (after OP_2DROP)
(empty)