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  1. WebAssembly
  2. WebAssembly instructions
  3. WebAssembly memory instructions
  4. Size

In this article

  • Try it
  • Syntax

Related Topics

  1. WebAssembly home page
  2. Tutorials
    1. WebAssembly concepts
    2. Compiling from C/C++ to WebAssembly
    3. Compiling from Rust to WebAssembly
    4. Using the WebAssembly JavaScript API
    5. Understanding WebAssembly text format
    6. Converting WebAssembly text format to wasm
    7. Loading and running WebAssembly code
    8. Caching compiled WebAssembly modules
    9. Exported WebAssembly functions
  3. Object reference
    1. WebAssembly
    2. WebAssembly.Module
    3. WebAssembly.Global
    4. WebAssembly.Instance
    5. WebAssembly.Memory
    6. WebAssembly.Table
    7. WebAssembly.CompileError
    8. WebAssembly.LinkError
    9. WebAssembly.RuntimeError

In this article

  • Try it
  • Syntax

Size

The size instruction, returns the amount of pages the memory instance currently has, each page is sized 64KiB.

Try it

Syntax

;; get the amount of pages the memory has
memory.size
Instruction Binary opcode
memory.size 0x3f

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Last modified: Apr 21, 2022, by MDN contributors

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