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v8-to-istanbul

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v8-to-istanbul

convert from v8 coverage format to istanbul's format

  • 7.0.0
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
19M
decreased by-27.08%
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2
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What is v8-to-istanbul?

The v8-to-istanbul package is a tool that converts V8 coverage information into a format that is compatible with Istanbul's coverage reports. It allows developers to generate coverage reports for JavaScript code executed in the V8 JavaScript engine, which is used by Node.js and Chrome.

What are v8-to-istanbul's main functionalities?

Convert V8 coverage to Istanbul format

This feature allows you to convert V8 coverage information into the Istanbul format. You can then use this data to generate reports with Istanbul-compatible tools.

const v8toIstanbul = require('v8-to-istanbul');
const scriptPath = './path/to/script.js';
const v8Coverage = require('./path/to/v8-coverage.json');

const converter = v8toIstanbul(scriptPath);
converter.load();
converter.applyCoverage(v8Coverage);
const istanbulCoverage = converter.toIstanbul();
console.log(JSON.stringify(istanbulCoverage, null, 2));

Exclude specific functions or lines from coverage

This feature allows you to exclude specific functions or ranges of lines from the coverage report. This is useful for ignoring code that you do not want to include in your coverage metrics.

const v8toIstanbul = require('v8-to-istanbul');
const scriptPath = './path/to/script.js';

const converter = v8toIstanbul(scriptPath, {
  exclude: ['**/node_modules/**', '**/test/**']
});
converter.exclude('functionName');
converter.excludeRange([startLine, endLine]);

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Package last updated on 25 Oct 2020

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