table.size
table.size table/reference operation.
reference-types0xFC 0x10
Syntax
table.size
Stack Effect
table operands -> table result/stateOpcode
- Hex
0xFC 0x10- Decimal
252 16- Bytes
[0xfc, 0x10]- Prefix
0xFCbulk-memory / saturating conversions / table extension space- Encoding
0xFC 0x10 <tableidx:u32-leb128>- Immediates
tableidx:u32-leb128
- Category
- table
- Proposal
- reference-types
Browser Support
Feature-detect runtime support before executing examples.
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.
(func $example
;; table.size example
)