TypeScript - Hello World Complete

typescript/hello-world/README.md

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+# Hello World
+
+The classical introductory exercise. Just say "Hello, World!".
+
+["Hello, World!"](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program) is
+the traditional first program for beginning programming in a new language
+or environment.
+
+The objectives are simple:
+
+- Write a function that returns the string "Hello, World!".
+- Run the test suite and make sure that it succeeds.
+- Submit your solution and check it at the website.
+
+If everything goes well, you will be ready to fetch your first real exercise.
+
+## Setup
+
+Go through the setup instructions for TypeScript to
+install the necessary dependencies:
+
+http://exercism.io/languages/typescript
+
+## Requirements
+
+Install assignment dependencies:
+
+```bash
+$ yarn install
+```
+
+## Making the test suite pass
+
+Execute the tests with:
+
+```bash
+$ yarn test
+```
+
+
+
+## Source
+
+This is an exercise to introduce users to using Exercism [http://en.wikipedia.org/wiki/%22Hello,_world!%22_program](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program)
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.

typescript/hello-world/hello-world.test.ts

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+
+import HelloWorld from "./hello-world"
+
+describe('Hello World', () => {
+
+  it('says hello world with no name', () => {
+    expect(HelloWorld.hello()).toEqual('Hello, World!')
+  })
+
+  it('says hello to bob', () => {
+    expect(HelloWorld.hello('Bob')).toEqual('Hello, Bob!')
+  })
+
+  it('says hello to sally', () => {
+    expect(HelloWorld.hello('Sally')).toEqual('Hello, Sally!')
+  })
+})

typescript/hello-world/hello-world.ts

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+class HelloWorld {
+    static hello(name: string = 'World') {
+        return "Hello, " + name + "!"
+    }
+}
+
+export default HelloWorld

typescript/hello-world/package.json

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+{
+  "name": "xtypescript",
+  "version": "0",
+  "description": "Exercism exercises in Typescript.",
+  "author": "",
+  "private": true,
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/exercism/xtypescript"
+  },
+  "devDependencies": {},
+  "scripts": {
+    "test": "tsc --noEmit -p . && jest --no-cache",
+    "lint": "tsc --noEmit -p . && tslint \"*.ts?(x)\"",
+    "lintci": "tslint \"*.ts?(x)\" --force"
+  },
+  "dependencies": {
+    "@types/jest": "^20.0.0",
+    "@types/node": "^7.0.5",
+    "jest": "^20.0.4",
+    "ts-jest": "^20.0.6",
+    "tslint": "^5.4.3",
+    "typescript": "^2.2.1"
+  },
+  "jest": {
+    "transform": {
+      ".(ts|tsx)": "<rootDir>/node_modules/ts-jest/preprocessor.js"
+    },
+    "testRegex": "(/__tests__/.*|\\.(test|spec))\\.(ts|tsx|js)$",
+    "moduleFileExtensions": [
+      "ts",
+      "tsx",
+      "js"
+    ]
+  }
+}

typescript/hello-world/tsconfig.json

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+{
+    "compilerOptions": { 
+        "target": "es2017",
+        "module": "commonjs",
+        "alwaysStrict": true,
+        "noUnusedLocals": true,
+        "noUnusedParameters": true,
+        "noImplicitAny": true,
+        "strictNullChecks": true,
+        "preserveConstEnums": true,
+        "noFallthroughCasesInSwitch":true,
+        "noImplicitThis":true,
+        "noImplicitReturns":true,
+        "sourceMap": true,
+        "noEmitOnError": true,
+        "outDir": "./build"
+    },
+    "compileOnSave": true, 
+    "exclude": [
+        "node_modules"
+    ]
+}

typescript/hello-world/tslint.json

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+{
+    "jsRules": {
+        "class-name": true,
+        "comment-format": [
+            true,
+            "check-space"
+        ],
+        "indent": [
+            true,
+            "spaces"
+        ],
+        "no-duplicate-variable": true,
+        "no-eval": true,
+        "no-trailing-whitespace": true,
+        "no-unsafe-finally": true,
+        "one-line": [
+            true,
+            "check-open-brace",
+            "check-whitespace"
+        ],
+        "quotemark": [
+            false,
+            "double"
+        ],
+        "semicolon": [
+            true,
+            "never"
+        ],
+        "triple-equals": [
+            true,
+            "allow-null-check"
+        ],
+        "variable-name": [
+            true,
+            "ban-keywords"
+        ],
+        "whitespace": [
+            true,
+            "check-branch",
+            "check-decl",
+            "check-operator",
+            "check-separator",
+            "check-type"
+        ]
+    },
+    "rules": {
+        "class-name": true,
+        "comment-format": [
+            true,
+            "check-space"
+        ],
+        "indent": [
+            true,
+            "spaces"
+        ],
+        "no-eval": true,
+        "no-internal-module": true,
+        "no-trailing-whitespace": true,
+        "no-unsafe-finally": true,
+        "no-var-keyword": true,
+        "one-line": [
+            true,
+            "check-open-brace",
+            "check-whitespace"
+        ],
+        "semicolon": [
+            true,
+            "never"
+        ],
+        "triple-equals": [
+            true,
+            "allow-null-check"
+        ],
+        "typedef-whitespace": [
+            true,
+            {
+                "call-signature": "nospace",
+                "index-signature": "nospace",
+                "parameter": "nospace",
+                "property-declaration": "nospace",
+                "variable-declaration": "nospace"
+            }
+        ],
+        "variable-name": [
+            true,
+            "ban-keywords"
+        ],
+        "whitespace": [
+            true,
+            "check-branch",
+            "check-decl",
+            "check-operator",
+            "check-separator",
+            "check-type"
+        ],
+        "no-namespace": true, 
+        "prefer-for-of": true,
+        "only-arrow-functions": [true, "allow-declarations"],
+        "no-var-requires": true,
+        "no-any": true,
+        "curly": true,
+        "forin": true,
+        "no-arg": true,
+        "label-position": true,
+        "no-conditional-assignment": true,
+        "no-console": [true, "log", "error"],
+        "no-construct": true,
+        "no-duplicate-variable": true,
+        "no-empty": true,
+        "no-invalid-this": [true, "check-function-in-method"],
+        "no-misused-new": true,
+        "no-null-keyword": true,
+        "no-string-literal": true,
+        "radix": true,
+        "typeof-compare": true,
+        "use-isnan": true,
+        "prefer-const": true,
+        "array-type": [true, "array-simple"],
+        "arrow-parens": true,
+        "new-parens": true,
+        "no-consecutive-blank-lines": [true,1],
+        "no-parameter-properties": true,
+        "no-unnecessary-initializer": true,
+        "object-literal-shorthand": true,
+        "object-literal-key-quotes": [true, "as-needed"]
+    }
+}