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frontend/node_modules/microseconds/.prettierrc

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+arrowParens: always
+endOfLine: lf
+alignTernaryLines: false
+tabWidth: 2
+semi: false
+singleQuote: true
+quoteProps: consistent
+bracketSpacing: true
+generatorStarSpacing: true
+spaceBeforeFunctionParen: true

frontend/node_modules/microseconds/README.md

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+# μs
+
+Generate and parse microseconds.
+
+Uses [hrtime](https://nodejs.org/api/process.html#process_process_hrtime) in node.js, [performance.now](https://developer.mozilla.org/en-US/docs/Web/API/Performance.now()) in browsers. Falls back to `Date.now() * 1000`.
+
+## API
+
+```js
+const μs = require('microseconds')
+```
+
+### now
+
+timestamp in microseconds
+
+```js
+const now = μs.now()
+// 1404398280599786
+```
+
+### parse
+
+as an object
+
+```js
+const parsed = μs.parse(now)
+// { microseconds: 786, milliseconds: 599, seconds: 0, minutes: 38, hours: 14, days: 16254 }
+```
+
+as a string
+
+```js
+parsed.toString()
+// "16254 days 14 hours 38 minutes 0 seconds 599 milliseconds 786 microseconds"
+
+μs.parse(1000).toString()
+// "1 millisecond"
+
+μs.parse(1).toString()
+// "1 microsecond"
+
+μs.parse(4231002).toString()
+// "4 seconds 231 milliseconds 2 microseconds"
+```
+
+### since
+
+```js
+const before = μs.now()
+const time = μs.since(before) // time passed
+```

frontend/node_modules/microseconds/index.js

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+'use strict'
+
+const now = require('./now')
+const parse = require('./parse')
+
+const since = (nano) => now() - nano
+
+exports.now = now
+exports.since = since
+exports.parse = parse

frontend/node_modules/microseconds/now.js

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+/* global performance */
+'use strict'
+
+let now
+
+if (global.process && process.hrtime) {
+  const hrtime = process.hrtime
+
+  now = () => {
+    const hr = hrtime()
+    return (hr[0] * 1e9 + hr[1]) / 1e3
+  }
+} else if (global.performance && performance.now) {
+  const timing = performance.timing
+  const start = (timing && timing.navigationStart) || Date.now()
+
+  now = () => (start + performance.now()) * 1e3
+} else {
+  now = () => Date.now() * 1e3
+}
+
+module.exports = now

frontend/node_modules/microseconds/package.json

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+{
+  "name": "microseconds",
+  "version": "0.2.0",
+  "description": "microsecond parser",
+  "keywords": [
+    "microseconds",
+    "microtime",
+    "time parser"
+  ],
+  "homepage": "https://github.com/kamicane/microseconds#readme",
+  "bugs": "https://github.com/kamicane/microseconds/issues",
+  "repository": "github:kamicane/microseconds",
+  "license": "MIT",
+  "author": "Valerio Proietti <kamicane@gmail.com>",
+  "main": "index.js",
+  "devDependencies": {
+    "prettier": "^1.19.1",
+    "prettier-plugin-packagejson": "^2.0.6",
+    "standard": "^14.3.1"
+  }
+}

frontend/node_modules/microseconds/parse.js

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+'use strict'
+
+function toString () {
+  const microseconds = this.microseconds
+  const milliseconds = this.milliseconds
+  const seconds = this.seconds
+  const minutes = this.minutes
+  const hours = this.hours
+  const days = this.days
+
+  const parts = [
+    {
+      name: 'day',
+      value: days
+    },
+    {
+      name: 'hour',
+      value: hours
+    },
+    {
+      name: 'minute',
+      value: minutes
+    },
+    {
+      name: 'second',
+      value: seconds
+    },
+    {
+      name: 'millisecond',
+      value: milliseconds
+    },
+    {
+      name: 'microsecond',
+      value: microseconds
+    }
+  ]
+
+  const time = []
+
+  for (let i = 0; i < parts.length; i++) {
+    const part = parts[i]
+    if (part.value === 0) {
+      if (!time.length) continue // nothing was added yet
+
+      let broken = false
+
+      for (let j = i; j < parts.length; j++) {
+        const p = parts[j]
+        if (p.value) {
+          broken = true
+          break
+        }
+      }
+
+      if (!broken) break
+    }
+
+    time.push(part.value, part.value === 1 ? part.name : part.name + 's')
+  }
+
+  return time.join(' ')
+}
+
+module.exports = (nano) => {
+  const ms = nano / 1000
+  const ss = ms / 1000
+  const mm = ss / 60
+  const hh = mm / 60
+  const dd = hh / 24
+
+  const microseconds = Math.round((ms % 1) * 1000)
+  const milliseconds = Math.floor(ms % 1000)
+  const seconds = Math.floor(ss % 60)
+  const minutes = Math.floor(mm % 60)
+  const hours = Math.floor(hh % 24)
+  const days = Math.floor(dd)
+
+  return {
+    microseconds,
+    milliseconds,
+    seconds,
+    minutes,
+    hours,
+    days,
+    toString
+  }
+}