• Skip to main content
  • Skip to search
  • Skip to select language
MDN Web Docs
  • References
    • Overview / Web Technology

      Web technology reference for developers

    • HTML

      Structure of content on the web

    • CSS

      Code used to describe document style

    • JavaScript

      General-purpose scripting language

    • HTTP

      Protocol for transmitting web resources

    • Web APIs

      Interfaces for building web applications

    • Web Extensions

      Developing extensions for web browsers

    • Web Technology

      Web technology reference for developers

  • Guides
    • Overview / MDN Learning Area

      Learn web development

    • MDN Learning Area

      Learn web development

    • HTML

      Learn to structure web content with HTML

    • CSS

      Learn to style content using CSS

    • JavaScript

      Learn to run scripts in the browser

    • Accessibility

      Learn to make the web accessible to all

  • Plus
    • Overview

      A customized MDN experience

    • AI Help (beta)

      Get real-time assistance and support

    • Updates

      All browser compatibility updates at a glance

    • Documentation

      Learn how to use MDN Plus

    • FAQ

      Frequently asked questions about MDN Plus

  • Blog
  • Play
  • AI Help Beta
  • Log in
  • Sign up for free
  1. WebAssembly
  2. WebAssembly instruction reference
  3. WebAssembly control flow instructions
  4. nop

In this article

  • Try it
  • Syntax
  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. Exported WebAssembly functions
  3. JavaScript interface
    1. WebAssembly
    2. WebAssembly.Module
    3. WebAssembly.Global
    4. WebAssembly.Instance
    5. WebAssembly.Memory
    6. WebAssembly.Table
    7. WebAssembly.Tag
    8. WebAssembly.Exception
    9. WebAssembly.CompileError
    10. WebAssembly.LinkError
    11. WebAssembly.RuntimeError

In this article

  • Try it
  • Syntax

nop

nop stands for no-operation. It literally does nothing.

Try it

Syntax

wasm

nop
Instruction Binary opcode
nop 0x01

Found a content problem with this page?

  • Edit the page on GitHub.
  • Report the content issue.
  • View the source on GitHub.
Want to get more involved? Learn how to contribute.

This page was last modified on Nov 3, 2023 by MDN contributors.

MDN logo

Your blueprint for a better internet.

  • MDN on Mastodon
  • MDN on Twitter
  • MDN on GitHub
  • MDN Blog RSS Feed

MDN

  • About
  • Blog
  • Careers
  • Advertise with us

Support

  • Product help
  • Report an issue

Our communities

  • MDN Community
  • MDN Forum
  • MDN Chat

Developers

  • Web Technologies
  • Learn Web Development
  • MDN Plus
  • Hacks Blog
Mozilla logo
  • Website Privacy Notice
  • Cookies
  • Legal
  • Community Participation Guidelines

Visit Mozilla Corporation’s not-for-profit parent, the Mozilla Foundation.
Portions of this content are ©1998–2023 by individual mozilla.org contributors. Content available under a Creative Commons license.