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istanbul-lib-instrument
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istanbul-lib-instrument
Core istanbul API for JS code coverage
- 5.2.0latest
- Version published
- Maintainers
- 4
- Weekly downloads
- 26,801,461
- decreased by-3.17%
Weekly downloads
Changelog
Readme
istanbul-lib-instrument
Istanbul instrumenter library.
Version 1.1.x now implements instrumentation using Babel. The implementation is inspired
by prior art by @dtinth as demonstrated in the __coverage__ babel plugin.
It provides 2 "modes" of instrumentation.
-
The old API that is mostly unchanged (except for incompatibilities noted) and performs the instrumentation using babel as a library.
-
A
programVisitorfunction for the Babel AST that can be used by a Babel plugin to emit instrumentation for ES6 code directly without any source map processing. This is the preferred path for babel users. The Babel plugin is calledbabel-plugin-istanbul.
Incompatibilities and changes to instrumentation behavior can be found in v0-changes.md.
FAQs
What is istanbul-lib-instrument?
Core istanbul API for JS code coverage
Is istanbul-lib-instrument popular?
The npm package istanbul-lib-instrument receives a total of 22,513,851 weekly downloads. As such, istanbul-lib-instrument popularity was classified as popular.
Is istanbul-lib-instrument well maintained?
We found that istanbul-lib-instrument demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago.It has 4 open source maintainers collaborating on the project.