Added generate-pdf, dynamic-import, unified

Author: tools-utils

dynamic-import/.babelrc

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+{
+  "presets": [
+    [
+    "@babel/preset-env",
+    {
+      "targets": {
+          "node": "current"
+      }
+    }
+    ]
+  ],
+  "plugins": ["@babel/plugin-transform-async-to-generator"]
+}
+  

dynamic-import/.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# dotenv environment variables file
+.env
+
+# gatsby files
+.cache/
+public
+
+# Mac files
+.DS_Store
+
+# Yarn
+yarn-error.log
+.pnp/
+.pnp.js
+# Yarn Integrity file
+.yarn-integrity
+
+lib

dynamic-import/README.md

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+# Introduction
+
+# Objectives
+
+# Implementation

dynamic-import/package.json

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+{
+  "name": "dynamic-import",
+  "version": "1.0.0",
+  "main": "index.js",
+  "license": "MIT",
+  "scripts": {
+    "build": "./node_modules/.bin/babel --version && ./node_modules/.bin/babel src -d lib",
+    "start": "node lib/index.js"
+  },
+  "devDependencies": {
+    "@babel/cli": "^7.7.7",
+    "@babel/core": "^7.7.7",
+    "@babel/plugin-transform-async-to-generator": "^7.7.4",
+    "@babel/preset-env": "^7.7.7"
+  },
+  "dependencies": {
+    "lodash": "^4.17.15",
+    "trough": "^1.0.5"
+  }
+}

dynamic-import/src/index.js

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+import _ from 'lodash'
+import trough from 'trough'
+
+const getLib = async (name) => {
+  const lib = await import(name)
+  return lib
+}
+
+const getMethod = async ({ libName, methodName }) => {
+  const lib = await getLib(libName)
+  let method
+  if (methodName) method = _.get(lib, methodName, undefined)
+  else method = _.get(lib, 'default', undefined)
+  return method
+}
+
+const run = async () => {
+  const method = await getMethod({ libName: 'lodash', methodName: 'add' })
+
+  const sum = method(6, 4)
+  // 10
+  console.log(sum)
+}
+
+const pipeline = async () => {
+  let p = trough()
+  const array = ['mean', 'floor']
+
+  for (let name of array) {
+    const method = await getMethod({ libName: 'lodash', methodName: name })
+    p = p.use(function(data) {
+      const value = method(data)
+      return value
+    })
+  }
+
+  return p
+}
+
+(async() => {
+  await run()
+  const p = await pipeline()
+  p.run([1.2, 2.4, 3.45, 6, 7, 18.5, 29.5], function(err, data) {
+    console.log(`End of pipeline ${data}`)
+  })
+  console.log('async/await in node with babel...')
+})()