Stricten TS rules; format registerServiceWorker.js

src/Website.tsx

@@ -1,4 +1,4 @@
-import React from "react"
+import React, { Component, ReactNode } from "react"
 
 import Header from "./components/Header"
 import Navbar from "./components/Navbar"
@@ -6,8 +6,8 @@ import Routes from "./routes"
 
 import "./Website.css"
 
-export default class Website extends React.Component {
-  public render() {
+export default class Website extends Component {
+  public render(): ReactNode {
     return (
       <div className="website">
         <div className="main-container">

src/components/ClearButton/index.tsx

@@ -1,4 +1,4 @@
-import React from "react"
+import React, { PureComponent, ReactNode } from "react"
 
 import "./index.css"
 
@@ -7,8 +7,8 @@ type Props = {
   children: string
 }
 
-export default class ClearButton extends React.PureComponent<Props> {
-  public render() {
+export default class ClearButton extends PureComponent<Props> {
+  public render(): ReactNode {
     return (
       <a className="clear-button" href={this.props.href}>
         {this.props.children}

src/components/Header/index.tsx

@@ -1,11 +1,11 @@
-import React from "react"
+import React, { PureComponent, ReactNode } from "react"
 
 import SmallText from "../SmallText"
 
 import "./index.css"
 
-export default class Header extends React.PureComponent {
-  public render() {
+export default class Header extends PureComponent {
+  public render(): ReactNode {
     return (
       <div className="header-container">
         <h2>Mitchell J. F. Simon</h2>

src/components/Job/index.tsx

@@ -1,4 +1,4 @@
-import * as React from "react"
+import React, { PureComponent, ReactNode } from "react"
 
 import SmallText from "../../components/SmallText"
 import "./index.css"
@@ -10,8 +10,8 @@ type Props = {
   bullets: string[]
 }
 
-export default class Experience extends React.PureComponent<Props> {
-  public render() {
+export default class Experience extends PureComponent<Props> {
+  public render(): ReactNode {
     return (
       <div className="job-container">
         <div className="job-title">{this.props.title}</div>
@@ -22,8 +22,8 @@ export default class Experience extends React.PureComponent<Props> {
     )
   }
 
-  private renderBullets() {
-    return this.props.bullets.map((bullet, index) => (
+  private renderBullets(): ReactNode[] {
+    return this.props.bullets.map((bullet: string, index: number) => (
       <li key={index}>{bullet}</li>
     ))
   }

src/components/Navbar/index.tsx

@@ -1,16 +1,16 @@
 import { faBars } from "@fortawesome/free-solid-svg-icons"
 import { FontAwesomeIcon } from "@fortawesome/react-fontawesome"
-import * as React from "react"
+import React, { Component, ReactNode } from "react"
 import { NavLink } from "react-router-dom"
 
-import { routes } from "../../routes/routes"
+import { Route, routes } from "../../routes/routes"
 import "./index.css"
 
 type State = {
   showMenu: boolean
 }
 
-class Navbar extends React.Component<{}, State> {
+export default class Navbar extends Component<{}, State> {
   constructor(props: {}) {
     super(props)
     this.state = { showMenu: !this.isMobile() }
@@ -21,7 +21,7 @@ class Navbar extends React.Component<{}, State> {
     this.menuButton = this.menuButton.bind(this)
   }
 
-  public render() {
+  public render(): ReactNode {
     return (
       <div className="navbar">
         {this.menuButton()}
@@ -32,7 +32,7 @@ class Navbar extends React.Component<{}, State> {
     )
   }
 
-  private menuButton() {
+  private menuButton(): ReactNode {
     if (this.isMobile()) {
       return (
         <div
@@ -51,19 +51,19 @@ class Navbar extends React.Component<{}, State> {
     return null
   }
 
-  private isMobile() {
+  private isMobile(): boolean {
     const mobileMenuMaximum = 800
     return window.innerWidth <= mobileMenuMaximum
   }
 
-  private toggleMenu() {
+  private toggleMenu(): void {
     if (this.isMobile() || !this.state.showMenu) {
-      this.setState(prev => ({ showMenu: !prev.showMenu }))
+      this.setState((prev: State) => ({ showMenu: !prev.showMenu }))
     }
   }
 
-  private renderButtons() {
-    return routes.map(route => (
+  private renderButtons(): ReactNode {
+    return routes.map((route: Route) => (
       <NavLink
         key={route.name}
         className="navbar-menu-button"
@@ -77,12 +77,10 @@ class Navbar extends React.Component<{}, State> {
     ))
   }
 
-  private closeMenu() {
+  private closeMenu(): void {
     window.scrollTo(0, 0)
     if (this.isMobile()) {
       this.setState({ showMenu: false })
     }
   }
 }
-
-export default Navbar

src/components/Project/index.tsx

@@ -1,4 +1,4 @@
-import * as React from "react"
+import React, { PureComponent, ReactNode } from "react"
 
 import ClearButton from "../../components/ClearButton"
 
@@ -17,8 +17,8 @@ type Props = {
   badges: Badge[]
 }
 
-export default class Project extends React.PureComponent<Props> {
-  public render() {
+export default class Project extends PureComponent<Props> {
+  public render(): ReactNode {
     return (
       <div className="project-container">
         <h4>{this.props.title}</h4>
@@ -29,8 +29,8 @@ export default class Project extends React.PureComponent<Props> {
     )
   }
 
-  private renderBadges(badges: Badge[]) {
-    return this.props.badges.map((badge, index) => (
+  private renderBadges(badges: Badge[]): ReactNode[] {
+    return badges.map((badge: Badge, index: number) => (
       <a className="project-badge" href={badge.linkUrl} key={index}>
         <img src={badge.imgUrl} alt={badge.alt} />
       </a>

src/components/SmallText/index.tsx

@@ -1,10 +1,9 @@
-// @flow
-import React from "react"
+import React, { PureComponent, ReactNode } from "react"
 
 import "./index.css"
 
-export default class SmallText extends React.PureComponent {
-  public render() {
+export default class SmallText extends PureComponent {
+  public render(): ReactNode {
     return <div className="small-text">{this.props.children}</div>
   }
 }

src/registerServiceWorker.js

@@ -9,17 +9,17 @@
 // This link also includes instructions on opting out of this behavior.
 
 const isLocalhost = Boolean(
-  window.location.hostname === 'localhost' ||
+  window.location.hostname === "localhost" ||
     // [::1] is the IPv6 localhost address.
-    window.location.hostname === '[::1]' ||
+    window.location.hostname === "[::1]" ||
     // 127.0.0.1/8 is considered localhost for IPv4.
     window.location.hostname.match(
       /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
     )
 )
 
-export default function register () {
-  if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
+export default function register() {
+  if (process.env.NODE_ENV === "production" && "serviceWorker" in navigator) {
     // The URL constructor is available in all browsers that support SW.
     const publicUrl = new URL(process.env.PUBLIC_URL, window.location) // eslint-disable-line no-undef
     if (publicUrl.origin !== window.location.origin) {
@@ -29,7 +29,7 @@ export default function register () {
       return
     }
 
-    window.addEventListener('load', () => {
+    window.addEventListener("load", () => {
       const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`
 
       if (isLocalhost) {
@@ -40,8 +40,8 @@ export default function register () {
         // service worker/PWA documentation.
         navigator.serviceWorker.ready.then(() => {
           console.log(
-            'This web app is being served cache-first by a service ' +
-              'worker. To learn more, visit https://goo.gl/SC7cgQ'
+            "This web app is being served cache-first by a service " +
+              "worker. To learn more, visit https://goo.gl/SC7cgQ"
           )
         })
       } else {
@@ -52,43 +52,43 @@ export default function register () {
   }
 }
 
-function registerValidSW (swUrl) {
+function registerValidSW(swUrl) {
   navigator.serviceWorker
     .register(swUrl)
     .then(registration => {
       registration.onupdatefound = () => {
         const installingWorker = registration.installing
         installingWorker.onstatechange = () => {
-          if (installingWorker.state === 'installed') {
+          if (installingWorker.state === "installed") {
             if (navigator.serviceWorker.controller) {
               // At this point, the old content will have been purged and
               // the fresh content will have been added to the cache.
               // It's the perfect time to display a "New content is
               // available; please refresh." message in your web app.
-              console.log('New content is available; please refresh.')
+              console.log("New content is available; please refresh.")
             } else {
               // At this point, everything has been precached.
               // It's the perfect time to display a
               // "Content is cached for offline use." message.
-              console.log('Content is cached for offline use.')
+              console.log("Content is cached for offline use.")
             }
           }
         }
       }
     })
     .catch(error => {
-      console.error('Error during service worker registration:', error)
+      console.error("Error during service worker registration:", error)
     })
 }
 
-function checkValidServiceWorker (swUrl) {
+function checkValidServiceWorker(swUrl) {
   // Check if the service worker can be found. If it can't reload the page.
   fetch(swUrl) // eslint-disable-line no-undef
     .then(response => {
       // Ensure service worker exists, and that we really are getting a JS file.
       if (
         response.status === 404 ||
-        response.headers.get('content-type').indexOf('javascript') === -1
+        response.headers.get("content-type").indexOf("javascript") === -1
       ) {
         // No service worker found. Probably a different app. Reload the page.
         navigator.serviceWorker.ready.then(registration => {
@@ -103,13 +103,13 @@ function checkValidServiceWorker (swUrl) {
     })
     .catch(() => {
       console.log(
-        'No internet connection found. App is running in offline mode.'
+        "No internet connection found. App is running in offline mode."
       )
     })
 }
 
-export function unregister () {
-  if ('serviceWorker' in navigator) {
+export function unregister() {
+  if ("serviceWorker" in navigator) {
     navigator.serviceWorker.ready.then(registration => {
       registration.unregister()
     })

src/routes/index.tsx

@@ -1,10 +1,10 @@
-import React from "react"
-import { Route, Switch } from "react-router-dom"
+import React, { Component, ReactNode } from "react"
+import { Route as RouteComponent, Switch } from "react-router-dom"
 
-import { redirects, routes } from "./routes"
+import { Redirect, redirects, Route, routes } from "./routes"
 
-export default class Routes extends React.Component {
-  public render() {
+export default class Routes extends Component {
+  public render(): ReactNode {
     return (
       <Switch>
         {this.renderRoutes()}
@@ -13,9 +13,9 @@ export default class Routes extends React.Component {
     )
   }
 
-  private renderRoutes() {
-    return routes.map(route => (
-      <Route
+  private renderRoutes(): ReactNode[] {
+    return routes.map((route: Route) => (
+      <RouteComponent
         key={route.name}
         exact={route.exact}
         path={route.path}
@@ -24,9 +24,9 @@ export default class Routes extends React.Component {
     ))
   }
 
-  private renderRedirects() {
-    return redirects.map(route => (
-      <Route key={route.path} path={route.path} render={route.func} />
+  private renderRedirects(): ReactNode[] {
+    return redirects.map((route: Redirect) => (
+      <RouteComponent key={route.path} path={route.path} render={route.func} />
     ))
   }
 }

src/routes/routes.tsx

@@ -1,7 +1,20 @@
+import { ComponentClass, ReactNode } from "react"
 import Contact from "../screens/Contact"
 import Home from "../screens/Home"
 import Projects from "../screens/Projects"
 
+export type Route = {
+  component: ComponentClass
+  exact: boolean
+  name: string
+  path: string
+}
+
+export type Redirect = {
+  func: () => ReactNode
+  path: string
+}
+
 export const routes = [
   {
     component: Home,
@@ -25,7 +38,7 @@ export const routes = [
 
 export const redirects = [
   {
-    func: () => {
+    func: (): ReactNode => {
       window.location.replace("https://linkedin.com/in/mitchelljfsimon")
       return null
     },

src/screens/Contact/index.tsx

@@ -1,10 +1,10 @@
-import React from "react"
+import React, { PureComponent, ReactNode } from "react"
 
 import linkedIn from "../../images/In-2C-128px-TM.png"
 import "./index.css"
 
-export default class Contact extends React.PureComponent {
-  public render() {
+export default class Contact extends PureComponent {
+  public render(): ReactNode {
     return (
       <div className="contact-container">
         <p>m@mjfs.us</p>

src/screens/Experience/index.tsx

@@ -1,4 +1,4 @@
-import * as React from "react"
+import React, { PureComponent, ReactNode } from "react"
 
 import Job from "../../components/Job"
 import jobsData from "../../data/jobs.json"
@@ -11,15 +11,15 @@ type JobData = {
   bullets: string[]
 }
 
-export default class Experience extends React.PureComponent {
-  public render() {
+export default class Experience extends PureComponent {
+  public render(): ReactNode {
     return (
       <div className="experience-container">{this.renderJobs(jobsData)}</div>
     )
   }
 
-  private renderJobs(jobs: JobData[]) {
-    return jobs.map(job => (
+  private renderJobs(jobs: JobData[]): ReactNode[] {
+    return jobs.map((job: JobData) => (
       <Job
         key={job.title}
         title={job.title}

src/screens/Home/index.tsx

@@ -1,10 +1,10 @@
-import * as React from "react"
+import React, { PureComponent, ReactNode } from "react"
 
 import profile from "../../images/profile.jpg"
 import "./index.css"
 
-export default class Home extends React.PureComponent {
-  public render() {
+export default class Home extends PureComponent {
+  public render(): ReactNode {
     return (
       <div className="home-container">
         <img src={profile} alt="Profile" />

src/screens/Projects/index.tsx

@@ -1,5 +1,4 @@
-// @flow
-import * as React from "react"
+import React, { PureComponent, ReactNode } from "react"
 
 import Project from "../../components/Project"
 
@@ -20,8 +19,8 @@ type ProjectData = {
   description: string
 }
 
-export default class Projects extends React.PureComponent {
-  public render() {
+export default class Projects extends PureComponent {
+  public render(): ReactNode {
     return (
       <div className="projects-container">
         {this.renderProjects(projectsData)}
@@ -29,8 +28,8 @@ export default class Projects extends React.PureComponent {
     )
   }
 
-  private renderProjects(projects: ProjectData[]) {
-    return projects.map(project => (
+  private renderProjects(projects: ProjectData[]): ReactNode[] {
+    return projects.map((project: ProjectData) => (
       <Project
         key={project.title}
         title={project.title}

tsconfig.json

@@ -20,7 +20,9 @@
     "forceConsistentCasingInFileNames": true,
     "resolveJsonModule": true,
     "isolatedModules": true,
-    "noEmit": true
+    "noEmit": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true
   },
   "exclude": [
     "node_modules",

tslint.json

@@ -2,8 +2,21 @@
   "extends": ["tslint:latest", "tslint-config-prettier"],
   "defaultSeverity": "warning",
   "rules": {
+    "no-any": true,
+    "no-unsafe-any": true,
+    "no-magic-numbers": true,
+    "no-console": true,
+    "cyclomatic-complexity": [true, 10],
+    "typedef": [
+      true,
+      "call-signature",
+      "arrow-call-signature",
+      "parameter",
+      "arrow-parameter",
+      "property-declaration",
+      "member-variable-declaration"
+    ],
     "semicolon": false,
-    "resolve-json-module": true,
     "interface-over-type-literal": false
   },
   "linterOptions": {