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5 Things You Might Not Know about Developing Self-Hosted Code

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Self-hosted code in SpiderMonkey is JavaScript used to implement intrinsic functions, benefiting from just-in-time compilation. Changes require building to take effect. Debugging can be done using dbg(), and specification step comments in the codebase can aid in implementation. The getSelfHostedValue() function helps explore self-hosted functions. Developers can also define their own self-hosted functions for use in JS Shell and XPC shell.

    #javascript#webassembly
Apr 23, 2025•3m read time•From spidermonkey.dev
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1. When you change self-hosted code, you need to build2. dbg()3. Specification step comments4. getSelfHostedValue()5. You can define your own self-hosted functions
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SpiderMonkey

SpiderMonkey is the JavaScript engine used in Mozilla Firefox and other Mozilla products. Readers ca...

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