Lab-James

.eslintignore

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+**/node_modules/*
+**/vendor/*
+**/*.min.js
+**/coverage/*
+**/build/*

.eslintrc

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+{
+  "rules": {
+    "no-console": "off",
+    "indent": [ "error", 2 ],
+    "quotes": [ "error", "single" ],
+    "semi": ["error", "always"],
+    "linebreak-style": [ "error", "unix" ]
+  },
+  "env": {
+    "es6": true,
+    "node": true,
+    "mocha": true,
+    "jasmine": true
+  },
+  "ecmaFeatures": {
+    "modules": true,
+    "experimentalObjectRestSpread": true,
+    "impliedStrict": true
+  },
+  "extends": "eslint:recommended"
+}

.gitignore

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+# Created by https://www.gitignore.io/api/osx,vim,node,macos,windows
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Node ###
+# 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
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+
+### OSX ###
+
+# Icon must end with two \r
+
+# Thumbnails
+
+# Files that might appear in the root of a volume
+
+# Directories potentially created on remote AFP share
+
+### Vim ###
+# swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+# session
+Session.vim
+# temporary
+.netrwhist
+*~
+# auto-generated tag files
+tags
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# End of https://www.gitignore.io/api/osx,vim,node,macos,windows

README.md

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-![cf](https://i.imgur.com/7v5ASc8.png) 02: Tools and Context
-======
-
-## To Submit this Assignment
-  * fork this repository & create a new branch for your work
-  * write all of your code in a directory named `lab-` + `<your name>` **e.g.** `lab-susan`
-  * push to your repository
-  * submit a pull request to this repository
-  * submit a link to your PR in canvas
-  * write a question and observation on canvas
-
-## Directions
-  * create a `/lib` and `/test` directory
-  * add a robust `.gitignore` file
-  * include a `package.json`
-  * include the provided `.eslintrc` file
-  * create a `lint` script for running eslint
-  * create a `test` script for running mocha
-  * create a `lib/fp.js` file for holding the following:
-    * create stand alone `map`, `filter`, `reduce`, `concat`, and `splice` functions using the `call`, and `apply` methods we discussed today
-    * you are welcome to use/experiment with `bind` too!
-  * *note:* - all functions should be created using the es6 lexical arrow function syntax
-
-# Tests
-  * create a test for each of your custom functions in `lib/fp.js`
-    * note - feel free to create additional tests, if you choose!
-
-## Bonus 2pts
-  * create a CLI (`index.js`) that will use your new `map` function to uppercase all command line arguments and print them to the screen: 1pt
-    * **hint:** - you'll want to check out the `process` object (and it's methods) to get an array of provided command line arguments
-  * test your CLI: 1pt
+## Lab-James Lab-02 Documentation
+  * index.js calls function 'main' function which returns CLI parameters as uppercase words using the fp.splice method from ./lib/fp.js.
+  * ./lib/fp.js defines the map, filter, reduce, concat, and splice methods using both call and apply.
+  * Tests
+    * ./test/fp-test.js tests the above methods
+    * **Stretch Goal:** ./test/index-test.js tests the index.js CLI functionality.
+  * Project passes Mocha (chai) tests and esLint.

index.js

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+'use strict';
+
+const fp = require('./lib/fp.js');
+
+let main = module.exports = () => {
+  let list = fp.splice(process.argv, 2);
+  list = fp.map(list, (word) => word.toUpperCase());
+  let result = list.join(' ');
+  console.log(result);
+  return result;
+};
+
+main();

lib/fp.js

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+'use strict';
+
+module.exports = exports = {};
+
+exports.map = (list, ...args) => {
+  if (!list) throw new Error('array not provided');
+  return Array.prototype.map.call(list, ...args);
+};
+
+
+exports.filter = (arr, callback) => {
+  if (!arr) throw new Error('array not provided');
+  return Array.prototype.filter.call(arr, callback);
+};
+
+exports.concat = (arr1, arr2) => {
+  if (!arr1) throw new Error('initial array not provided');
+  return Array.prototype.concat.apply(arr1, arr2);
+};
+
+exports.reduce = (arr, idx, callback) => {
+  if (!arr) throw new Error('array not provided');
+  return Array.prototype.reduce.call(arr, idx, callback);
+};
+
+exports.splice = (list, ...args) => {
+  if (!list) throw new Error('array not provided');
+  return Array.prototype.splice.call(list, ...args);
+};

package.json

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+{
+  "name": "02-tools_and_context",
+  "version": "1.0.0",
+  "description": "![cf](https://i.imgur.com/7v5ASc8.png) 02: Tools and Context ======",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "start": "node index.js",
+    "test": "mocha",
+    "lint": "eslint"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/codefellows-javascript-401d17/02-tools_and_context.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/codefellows-javascript-401d17/02-tools_and_context/issues"
+  },
+  "homepage": "https://github.com/codefellows-javascript-401d17/02-tools_and_context#readme",
+  "devDependencies": {
+    "chai": "^4.1.0",
+    "expect": "^1.20.2",
+    "mocha": "^3.4.2"
+  }
+}

test/test-fp.js

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+'use strict';
+
+const fp = require('../lib/fp.js');
+const expect = require('chai').expect;
+
+describe('fp', () => {
+  describe('#map', () => {
+    it('should throw array not provided error', () => {
+      let mapArrErr = fp.map;
+      expect(mapArrErr).to.throw(Error);
+    });
+    it('should return an array with doubled numbers', () => {
+      let validMap = fp.map([1,2,3,4], (n) => { return n * 2; });
+      expect(validMap).to.be.an('array').that.includes.members([2,4,6,8]);
+    });
+  });
+  describe('#filter', () =>{
+    it('should throw array not provided error', () => {
+      let filterArrErr = fp.filter;
+      expect(filterArrErr).to.throw(Error);
+    });
+    it('should return an array that is missing the number 2', () => {
+      let validFilter = fp.filter([1, 2, 3, 4], (n) => { return n !== 2; });
+      expect(validFilter).to.be.an('array').to.not.have.members([2]);
+    });
+  });
+  describe('#concat', () => {
+    it('should throw an intial array not provided error', () => {
+      let concatArrErr = fp.concat;
+      expect(concatArrErr).to.throw(Error);
+    });
+    it('should be an array the is a combination of two arrays', () => {
+      let validConcat = fp.concat([1,2,3], [4,5,6]);
+      expect(validConcat).to.be.an('array').to.include.members([1,2,3,4,5,6]);
+    });
+  });
+  describe('#reduce', () =>{
+    it('should throw an intial array not provided error', () => {
+      let reduceArrErr = fp.concat;
+      expect(reduceArrErr).to.throw(Error);
+    });
+    it('should reduce an array down to a single value', () => {
+      let validReduce = fp.reduce([0, 1, 2, 3], (acc, n) => {return acc + n; }, 0);
+      expect(validReduce).to.equal(6);
+    });
+    it('should count amount of each name in an array and return it in an object', () => {
+      var names = ['Alice', 'Bob', 'Tiff', 'Bruce', 'Alice'];
+      var validNameReduce = fp.reduce(names, (allNames, name) => {
+        if (name in allNames) {
+          allNames[name]++;
+        }
+        else {
+          allNames[name] = 1;
+        }
+        return allNames;
+      }, {});
+      expect(validNameReduce).to.be.an('object');
+    });
+  });
+  describe('#splice', () => {
+    it('should throw an intial array not provided error', () =>{
+      let spliceArrErr = fp.concat;
+      expect(spliceArrErr).to.throw(Error);
+    });
+    it('should return [6,7,8]', () => {
+      let result = fp.splice([1,2,3,4,5,6,7,8], 5);
+      expect(result).to.be.an('array').to.include.members([6,7,8]);
+    });
+  });
+});

test/test-index.js

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+'use strict';
+
+const expect = require('chai').expect;
+const main = require('../index.js');
+
+describe('main', () => {var oldArgv = process.argv;
+  before(() => {
+    process.argv = [
+      'node path',
+      'file path',
+      'cat',
+      'dog',
+    ];
+  });
+
+  after(() => {
+    process.argv = oldArgv;
+  });
+
+  it('should return \'CAT DOG\'', () => {
+    let result = main();
+    expect(result).to.be.a('string').to.have.string('CAT DOG');
+  });
+});