Chapter 5: Understanding Sections in WebAssembly Modules

A WebAssembly module is composed of zero or more sections. Each section has its own functionality. In the previous chapters, we saw how functions are defined inside a WebAssembly module. A function is a section inside a WebAssembly module.

In this chapter, we will explore the various other sections inside a WebAssembly module. Understanding the various sections inside a WebAssembly module will make it easier for us to identify, debug, and write efficient WebAssembly modules. We will cover the following sections in this chapter:

  • Exports and imports
  • Globals
  • Start
  • Memory

Technical requirements

You can find the code files present in this chapter on GitHub at ...

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