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## istanbul-lib-coverage
[![Greenkeeper badge](https://badges.greenkeeper.io/istanbuljs/istanbul-lib-coverage.svg)](https://greenkeeper.io/) [![Build Status](https://travis-ci.org/istanbuljs/istanbul-lib-coverage.svg?branch=master)](https://travis-ci.org/istanbuljs/istanbul-lib-coverage)
An API that provides a read-only view of coverage information with the ability to merge and summarize coverage info.
Supersedes `object-utils` and `collector` from the v0 istanbul API.
See the docs for the full API.
```js var libCoverage = require('istanbul-lib-coverage'); var map = libCoverage.createCoverageMap(globalCoverageVar); var summary = libCoverage.createCoverageSummary();
// merge another coverage map into the one we created map.merge(otherCoverageMap);
// inspect and summarize all file coverage objects in the map map.files().forEach(function(f) { var fc = map.fileCoverageFor(f), s = fc.toSummary(); summary.merge(s); });
console.log('Global summary', summary); ```
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