Created
February 16, 2016 00:49
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Calculate the average number of dependencies in all modules on npm.
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var request = require('request') | |
, JSONStream = require('JSONStream') | |
, deps = [] | |
request('https://skimdb.npmjs.com/registry/_all_docs?include_docs=true') | |
.pipe(JSONStream.parse('rows.*.doc')) | |
.on('data', function (obj) { | |
// project against outdated or broken package.json | |
if (!obj['dist-tags']) return | |
if (!obj['dist-tags'].latest) return | |
if (!obj.versions[latest]) return | |
// get latest deps count | |
var latest = obj['dist-tags'].latest | |
var count = obj.versions[latest].dependencies ? Object.keys(obj.versions[latest].dependencies).length : 0 | |
deps.push(count) | |
}) | |
.on('end', function () { | |
var sum = function (a, b) {return a + b} | |
console.log(deps.reduce(sum) / deps.length) | |
}) |
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