Lab-david

.eslintrc.json

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+{
+    "env": {
+      "browser": true,
+      "node": true,
+      "commonjs": true,
+      "jest": true,
+      "es6": true
+    },
+    "globals": {
+      "err": true,
+      "req": true,
+      "res": true,
+      "next": true
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+      "sourceType": "module"
+    },
+    "rules": {
+      "no-console": "off",
+      "indent": [ "error", 2 ],
+      "quotes": ["error", "single", { "allowTemplateLiterals": true }],
+      "comma-dangle": ["error", "always-multiline"],
+      "semi": [ "error", "always" ]
+    }
+  }

.gitignore

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+
+# Created by https://www.gitignore.io/api/node,macos,visualstudiocode
+
+### 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
+
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history
+
+# End of https://www.gitignore.io/api/node,macos,visualstudiocodes

lab-david/.eslintignore

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

lab-david/.eslintrc.json

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+{
+    "env": {
+      "browser": true,
+      "node": true,
+      "commonjs": true,
+      "jest": true,
+      "es6": true
+    },
+    "globals": {
+      "err": true,
+      "req": true,
+      "res": true,
+      "next": true
+    },
+    "extends": "eslint:recommended",
+    "parserOptions": {
+      "sourceType": "module"
+    },
+    "rules": {
+      "no-console": "off",
+      "indent": [ "error", 2 ],
+      "quotes": ["error", "single", { "allowTemplateLiterals": true }],
+      "comma-dangle": ["error", "always-multiline"],
+      "semi": [ "error", "always" ]
+    }
+  }

lab-david/.gitignore

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+
+# Created by https://www.gitignore.io/api/node,macos,visualstudiocode
+
+### 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
+
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history
+
+# End of https://www.gitignore.io/api/node,macos,visualstudiocodes

lab-david/README.md

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+
+
+## Exported values
+* greet.js will take an input and export the phrase "hello <name>"
+* If the input is not a string, it will return null
+* arithmetic will take two numbers and return either their sum via addition or difference via subtraction
+
+## Functions
+* Greet - *only takes one parameter, a name (string)*
+* Arithmetic - *only takes two parameters (numbers)*
+
+## Tests  
+* tests are in the [test folder](/__test__)
+
+## Files 
+* **.gitignore** - files for git to ignore
+* **.eslintrc** -  the linter config
+* **.eslintignore** -  the linter ignore config
+* **lib/** - contains module definitions
+
+## Frameworks / Languages
+* Uses JEST and Node.js
+
+## Author
+* David A. Lindahl
+
+## Purpose
+* Written for Code Fellows 401 Full Stack Javascript course.

lab-david/__test__/arithmetic.test.js

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+'use strict';
+
+const arithmetic = require('../lib/arithmetic.js');
+
+describe('arithmetic.test.js', () => {
+  describe('arithmetic.add', () => {
+
+    test('arithmetic.add should return the sum of two numbers', () => {
+      expect(arithmetic.add(1, 1)).toEqual(2);
+    });
+
+    test('arithmetic.add should return null if either parameter is a non-number', () => {
+      expect(arithmetic.add('')).toEqual('null');
+    });
+  });
+
+  describe('arithmetic.sub', () => {
+
+    test('arithmetic.sub should return the difference between two numbers', () => {
+      expect(arithmetic.sub(1, 1)).toEqual(0);
+    });
+
+    test('arithmetic.sub should return null if either parameter is a non-number', () => {
+      expect(arithmetic.sub('')).toEqual('null');
+    });
+  });
+});

lab-david/__test__/greet.test.js

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+'use strict';
+
+const greet = require('../lib/greet.js');
+
+describe('greet.test.js', () => {
+  describe('greet.hi', () => {
+
+    test('greet.hi should return "hello <name>" if no errors are present', () => {
+      expect(greet.hi('fred')).toEqual('hello fred');
+    });
+
+    test('greet.hi should return null when user supplies non string values', () => {
+      expect(greet.hi('')).toEqual('null');
+    });
+  });
+});