Nicholasc

lab-nicholas/.eslintignore

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

lab-nicholas/.eslintrc

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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-nicholas/.gitignore

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+
+# Created by https://www.gitignore.io/api/node,linux
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### 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
+
+
+# End of https://www.gitignore.io/api/node,linux

lab-nicholas/README.md

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+# arithmetic.js
+##arithmetic.sum 
+arithmetic.sum takes in two numbers, 'a' and 'b' and returns their sum. there is input validation to make sure they are both numbers and 'null' is returned if there is an error.
+##arithmetic.sub
+arithmetic.sub takes in two numbers, 'a' and 'b' and returns their difference. there is input validation to make sure they are both numbers and 'null' is returned if there is an error.
+#greet.js
+##greet.greet
+greet.greet takes in a string 'name' and returns the concatenated string 'Hello <name>'. There is input validation to make sure 'name' is a string and not empty. It returns 'null if there is an error'

lab-nicholas/__test__/arithmetic.test.js

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+
+'use strict';
+
+const arithmetic = require('../lib/arithmetic.js');
+
+describe('arithmetic.js', () => {
+  describe('arithmetic.sum', () => {
+    test('arithmetic.sum should return the sum of the parameters', () => {
+      expect(arithmetic.sum(2, 4)).toEqual(6);
+      expect(arithmetic.sum(3, 7)).toEqual(10);
+    });
+
+    test('arithmetic.sum should return null if any input is NaN', () => {
+      expect(arithmetic.sum('', '')).toEqual(null);
+      expect(arithmetic.sum(3, 'pineapple')).toEqual(null);
+    });
+
+  });
+
+  describe('arithmetic.sub', () => {
+    test('arithmetic.sub should return the difference of the parameters', () => {
+      expect(arithmetic.sub(6, 4)).toEqual(2);
+      expect(arithmetic.sub(17, 7)).toEqual(10);
+    });
+
+    test('arithmetic.sub should return null if any input is NaN', () => {
+      expect(arithmetic.sub('', '')).toEqual(null);
+      expect(arithmetic.sub(3, 'pineapple')).toEqual(null);
+    });
+
+  });
+});

lab-nicholas/__test__/greet.test.js

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+'use strict';
+
+const greet = require('../lib/greet.js');
+
+describe('greet.js', () => {
+  describe('greet.greet', () => {
+    test('greet.greet should return hello <name>', () => {
+      expect(greet.greet('Demi')).toEqual('Hello Demi');
+      expect(greet.greet('Sam')).toEqual('Hello Sam');
+      expect(greet.greet('World')).toEqual('Hello World');
+    });
+
+    test('greet.greet should return null if error', () => {
+      expect(greet.greet('')).toEqual(null);
+      expect(greet.greet(355641)).toEqual(null);
+    });
+
+  });
+});

lab-nicholas/lib/arithmetic.js

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+'use strict';
+
+const Arithmetic = module.exports = {};
+
+Arithmetic.sum = (a, b) => {
+  if(typeof a !== 'number' || typeof b !== 'number'){
+    return null;
+  }
+  return a+b;
+};
+
+Arithmetic.sub = (a, b) => {
+  if(typeof a !== 'number' || typeof b !== 'number' ){
+    return null;
+  }
+  return a-b;
+};

lab-nicholas/lib/greet.js

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+'use strict';
+
+const Greet = module.exports = {};
+
+Greet.greet = (name) => {
+  if(name === '' || typeof name !== 'string'){
+    return null;
+  }
+  return `Hello ${name}`;
+};

lab-nicholas/package.json

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+{
+  "name": "lab-nicholas",
+  "version": "1.0.0",
+  "description": "jest lab",
+  "main": "index.js",
+  "scripts": {
+    "test": "jest"
+  },
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "jest": "^21.2.1"
+  }
+}