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284 lines
6.8 KiB
284 lines
6.8 KiB
4 years ago
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// different ways to id objects
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// use a req/res pair, since it's crazy deep and cyclical
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// sparseFE10 and sigmund are usually pretty close, which is to be expected,
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// since they are essentially the same algorithm, except that sigmund handles
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// regular expression objects properly.
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var http = require('http')
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var util = require('util')
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var sigmund = require('./sigmund.js')
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var sreq, sres, creq, cres, test
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http.createServer(function (q, s) {
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sreq = q
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sres = s
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sres.end('ok')
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this.close(function () { setTimeout(function () {
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start()
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}, 200) })
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}).listen(1337, function () {
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creq = http.get({ port: 1337 })
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creq.on('response', function (s) { cres = s })
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})
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function start () {
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test = [sreq, sres, creq, cres]
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// test = sreq
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// sreq.sres = sres
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// sreq.creq = creq
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// sreq.cres = cres
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for (var i in exports.compare) {
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console.log(i)
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var hash = exports.compare[i]()
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console.log(hash)
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console.log(hash.length)
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console.log('')
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}
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require('bench').runMain()
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}
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function customWs (obj, md, d) {
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d = d || 0
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var to = typeof obj
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if (to === 'undefined' || to === 'function' || to === null) return ''
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if (d > md || !obj || to !== 'object') return ('' + obj).replace(/[\n ]+/g, '')
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if (Array.isArray(obj)) {
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return obj.map(function (i, _, __) {
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return customWs(i, md, d + 1)
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}).reduce(function (a, b) { return a + b }, '')
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}
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var keys = Object.keys(obj)
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return keys.map(function (k, _, __) {
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return k + ':' + customWs(obj[k], md, d + 1)
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}).reduce(function (a, b) { return a + b }, '')
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}
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function custom (obj, md, d) {
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d = d || 0
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var to = typeof obj
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if (to === 'undefined' || to === 'function' || to === null) return ''
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if (d > md || !obj || to !== 'object') return '' + obj
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if (Array.isArray(obj)) {
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return obj.map(function (i, _, __) {
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return custom(i, md, d + 1)
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}).reduce(function (a, b) { return a + b }, '')
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}
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var keys = Object.keys(obj)
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return keys.map(function (k, _, __) {
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return k + ':' + custom(obj[k], md, d + 1)
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}).reduce(function (a, b) { return a + b }, '')
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}
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function sparseFE2 (obj, maxDepth) {
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var seen = []
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var soFar = ''
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function ch (v, depth) {
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if (depth > maxDepth) return
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if (typeof v === 'function' || typeof v === 'undefined') return
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if (typeof v !== 'object' || !v) {
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soFar += v
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return
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}
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if (seen.indexOf(v) !== -1 || depth === maxDepth) return
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seen.push(v)
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soFar += '{'
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Object.keys(v).forEach(function (k, _, __) {
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// pseudo-private values. skip those.
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if (k.charAt(0) === '_') return
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var to = typeof v[k]
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if (to === 'function' || to === 'undefined') return
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soFar += k + ':'
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ch(v[k], depth + 1)
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})
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soFar += '}'
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}
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ch(obj, 0)
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return soFar
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}
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function sparseFE (obj, maxDepth) {
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var seen = []
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var soFar = ''
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function ch (v, depth) {
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if (depth > maxDepth) return
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if (typeof v === 'function' || typeof v === 'undefined') return
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if (typeof v !== 'object' || !v) {
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soFar += v
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return
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}
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if (seen.indexOf(v) !== -1 || depth === maxDepth) return
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seen.push(v)
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soFar += '{'
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Object.keys(v).forEach(function (k, _, __) {
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// pseudo-private values. skip those.
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if (k.charAt(0) === '_') return
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var to = typeof v[k]
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if (to === 'function' || to === 'undefined') return
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soFar += k
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ch(v[k], depth + 1)
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})
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}
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ch(obj, 0)
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return soFar
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}
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function sparse (obj, maxDepth) {
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var seen = []
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var soFar = ''
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function ch (v, depth) {
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if (depth > maxDepth) return
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if (typeof v === 'function' || typeof v === 'undefined') return
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if (typeof v !== 'object' || !v) {
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soFar += v
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return
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}
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if (seen.indexOf(v) !== -1 || depth === maxDepth) return
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seen.push(v)
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soFar += '{'
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for (var k in v) {
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// pseudo-private values. skip those.
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if (k.charAt(0) === '_') continue
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var to = typeof v[k]
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if (to === 'function' || to === 'undefined') continue
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soFar += k
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ch(v[k], depth + 1)
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}
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}
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ch(obj, 0)
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return soFar
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}
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function noCommas (obj, maxDepth) {
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var seen = []
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var soFar = ''
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function ch (v, depth) {
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if (depth > maxDepth) return
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if (typeof v === 'function' || typeof v === 'undefined') return
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if (typeof v !== 'object' || !v) {
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soFar += v
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return
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}
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if (seen.indexOf(v) !== -1 || depth === maxDepth) return
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seen.push(v)
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soFar += '{'
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for (var k in v) {
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// pseudo-private values. skip those.
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if (k.charAt(0) === '_') continue
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var to = typeof v[k]
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if (to === 'function' || to === 'undefined') continue
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soFar += k + ':'
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ch(v[k], depth + 1)
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}
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soFar += '}'
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}
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ch(obj, 0)
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return soFar
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}
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function flatten (obj, maxDepth) {
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var seen = []
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var soFar = ''
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function ch (v, depth) {
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if (depth > maxDepth) return
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if (typeof v === 'function' || typeof v === 'undefined') return
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if (typeof v !== 'object' || !v) {
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soFar += v
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return
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}
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if (seen.indexOf(v) !== -1 || depth === maxDepth) return
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seen.push(v)
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soFar += '{'
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for (var k in v) {
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// pseudo-private values. skip those.
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if (k.charAt(0) === '_') continue
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var to = typeof v[k]
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if (to === 'function' || to === 'undefined') continue
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soFar += k + ':'
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ch(v[k], depth + 1)
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soFar += ','
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}
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soFar += '}'
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}
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ch(obj, 0)
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return soFar
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}
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exports.compare =
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{
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// 'custom 2': function () {
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// return custom(test, 2, 0)
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// },
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// 'customWs 2': function () {
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// return customWs(test, 2, 0)
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// },
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'JSON.stringify (guarded)': function () {
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var seen = []
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return JSON.stringify(test, function (k, v) {
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if (typeof v !== 'object' || !v) return v
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if (seen.indexOf(v) !== -1) return undefined
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seen.push(v)
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return v
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})
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},
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'flatten 10': function () {
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return flatten(test, 10)
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},
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// 'flattenFE 10': function () {
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// return flattenFE(test, 10)
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// },
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'noCommas 10': function () {
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return noCommas(test, 10)
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},
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'sparse 10': function () {
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return sparse(test, 10)
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},
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'sparseFE 10': function () {
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return sparseFE(test, 10)
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},
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'sparseFE2 10': function () {
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return sparseFE2(test, 10)
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},
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sigmund: function() {
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return sigmund(test, 10)
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},
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// 'util.inspect 1': function () {
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// return util.inspect(test, false, 1, false)
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// },
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// 'util.inspect undefined': function () {
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// util.inspect(test)
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// },
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// 'util.inspect 2': function () {
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// util.inspect(test, false, 2, false)
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// },
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// 'util.inspect 3': function () {
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// util.inspect(test, false, 3, false)
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// },
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// 'util.inspect 4': function () {
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// util.inspect(test, false, 4, false)
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// },
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// 'util.inspect Infinity': function () {
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// util.inspect(test, false, Infinity, false)
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// }
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}
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/** results
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**/
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