control

drop

Discard the top stack value.

core0x1A

Syntax

drop

Stack Effect

[t] -> []

Opcode

Hex: 0x1A
Decimal: 26
Bytes: [0x1a]
Encoding: 0x1A
Category: parametric

Browser Support

Core WebAssembly instruction.

Validation Rules

Operands and result types must match the instruction signature.
The instruction must appear in a valid structured control context.

Common Mistakes

Using the instruction with the wrong operand type.
Forgetting that WAT validation is stack-typed.

Example

(func $example
  ;; drop example
)