Corrected some linting errors.

src/app/app-routing.module.ts

@@ -1,5 +1,5 @@
-import {NgModule} from "@angular/core";
-import {RouterModule, Routes} from "@angular/router";
+import {NgModule} from '@angular/core';
+import {RouterModule, Routes} from '@angular/router';
 
 const routes: Routes = [
   {

src/app/app.component.spec.ts

@@ -1,7 +1,7 @@
-import {AppComponent} from "./app.component";
-import {async, ComponentFixture, TestBed} from "@angular/core/testing";
-import {InputComponentManagerService} from "./inputcomponentmanager.service";
-import {Step} from "./step";
+import {AppComponent} from './app.component';
+import {async, ComponentFixture, TestBed} from '@angular/core/testing';
+import {InputComponentManagerService} from './inputcomponentmanager.service';
+import {Step} from './step';
 
 describe('AppComponent', () => {
   let sut: AppComponent;

src/app/app.component.ts

@@ -1,9 +1,9 @@
-import {Component, OnInit} from "@angular/core";
-import {ConverterRegistryService} from "./converterregistry.service";
-import {InputComponentManagerService} from "./inputcomponentmanager.service";
-import {NativeLibraryWrapperService} from "./nativelibrarywrapper.service";
-import {Step} from "./step";
-import {Converter} from "./converter/converter";
+import {Component, OnInit} from '@angular/core';
+import {ConverterRegistryService} from './converterregistry.service';
+import {InputComponentManagerService} from './inputcomponentmanager.service';
+import {NativeLibraryWrapperService} from './nativelibrarywrapper.service';
+import {Step} from './step';
+import {Converter} from './converter/converter';
 
 @Component({
   selector: 'app-root',
@@ -15,7 +15,8 @@ export class AppComponent implements OnInit {
   public steps: Step[] = [];
   public converters: Converter[] = [];
 
-  constructor(private converterRegistryService: ConverterRegistryService, private inputComponentManagerService: InputComponentManagerService) {
+  constructor(private converterRegistryService: ConverterRegistryService,
+              private inputComponentManagerService: InputComponentManagerService) {
   }
 
   convert(step: Step, $event: any): void {
@@ -24,15 +25,15 @@ export class AppComponent implements OnInit {
   }
 
   update(step: Step): void {
-    let converter: Converter = step.selectedConverter;
+    const converter: Converter = step.selectedConverter;
 
     if (converter !== undefined) {
-      let content: string = step.content;
+      const content: string = step.content;
       let result: string;
       try {
         result = converter.convert(content);
       } catch (error) {
-        if (typeof console === "object" && typeof console.log === "function") {
+        if (typeof console === 'object' && typeof console.log === 'function') {
           console.log(error);
         }
         step.message = error.message;
@@ -40,10 +41,10 @@ export class AppComponent implements OnInit {
         result = null;
       }
       if (result !== null) {
-        step.message = "";
+        step.message = '';
         step.error = false;
-        if (result !== "") {
-          let nextComponent: Step = this.inputComponentManagerService.getNext(step);
+        if (result !== '') {
+          const nextComponent: Step = this.inputComponentManagerService.getNext(step);
           nextComponent.content = result;
           this.update(nextComponent);
         }

src/app/app.module.ts

@@ -1,10 +1,10 @@
-import {BrowserModule} from "@angular/platform-browser";
-import {NgModule} from "@angular/core";
-import {FormsModule} from "@angular/forms";
-import {HttpModule} from "@angular/http";
+import {BrowserModule} from '@angular/platform-browser';
+import {NgModule} from '@angular/core';
+import {FormsModule} from '@angular/forms';
+import {HttpModule} from '@angular/http';
 
-import {AppRoutingModule} from "./app-routing.module";
-import {AppComponent} from "./app.component";
+import {AppRoutingModule} from './app-routing.module';
+import {AppComponent} from './app.component';
 
 @NgModule({
   declarations: [

src/app/converter/base64decoder.ts

@@ -1,19 +1,19 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class Base64Decoder implements Converter {
   getDisplayname(): string {
-    return "Decode Base 64";
+    return 'Decode Base 64';
   }
 
   getId(): string {
-    return "base64decode";
+    return 'base64decode';
   }
 
   convert(input: string): string {
     try {
       return atob(input);
     } catch (exception) {
-      throw new Error("Could not decode base64 string. Maybe corrupt input?");
+      throw new Error('Could not decode base64 string. Maybe corrupt input?');
     }
   }
 }

src/app/converter/base64encoder.ts

@@ -1,12 +1,12 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class Base64Encoder implements Converter {
   getDisplayname(): string {
-    return "Encode Base 64";
+    return 'Encode Base 64';
   }
 
   getId(): string {
-    return "base64encode";
+    return 'base64encode';
   }
 
   convert(input: string): string {
@@ -14,7 +14,7 @@ export class Base64Encoder implements Converter {
       return btoa(input);
     } catch (exception) {
       console.error(exception);
-      throw new Error("Ouch! Looks like you've got a UTF-8 character there. Too bad, this is not supported yet. We're working on it and hope to be ready soon! Why don't you <a href=\"https://duckduckgo.com/?q=cute+kitties&iar=images\">enjoy some kittens</a> meanwhile?");
+      throw new Error('Ouch! Looks like you've got a UTF-8 character there. Too bad, this is not supported yet. We're working on it and hope to be ready soon! Why don't you <a href=\'https://duckduckgo.com/?q=cute+kitties&iar=images\'>enjoy some kittens</a> meanwhile?');
     }
   }
 }

src/app/converter/bintodecconverter.ts

@@ -1,18 +1,18 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class BinToDecConverter implements Converter {
   getDisplayname(): string {
-    return "Convert binary to decimal";
+    return 'Convert binary to decimal';
   }
 
   getId(): string {
-    return "bintodec";
+    return 'bintodec';
   }
 
   convert(input: string): string {
     let n: number = parseInt(input, 2);
     if (isNaN(n)) {
-      throw new Error("The input seems not to be a valid binary number.");
+      throw new Error('The input seems not to be a valid binary number.');
     }
     return n.toString(10);
   }

src/app/converter/dectobinconverter.ts

@@ -1,18 +1,18 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class DecToBinConverter implements Converter {
   getDisplayname(): string {
-    return "Convert decimal to binary";
+    return 'Convert decimal to binary';
   }
 
   getId(): string {
-    return "dectobin";
+    return 'dectobin';
   }
 
   convert(input: string): string {
     let n: number = parseInt(input, 10);
     if (isNaN(n)) {
-      throw new Error("The input seems not to be a valid integer.");
+      throw new Error('The input seems not to be a valid integer.');
     }
     return n.toString(2);
   }

src/app/converter/dectohexconverter.ts

@@ -1,18 +1,18 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class DecToHexConverter implements Converter {
   getDisplayname(): string {
-    return "Convert decimal to hexadecimal";
+    return 'Convert decimal to hexadecimal';
   }
 
   getId(): string {
-    return "dectohex";
+    return 'dectohex';
   }
 
   convert(input: string): string {
     let n: number = parseInt(input, 10);
     if (isNaN(n)) {
-      throw new Error("The input seems not to be a valid integer.");
+      throw new Error('The input seems not to be a valid integer.');
     }
     return n.toString(16);
   }

src/app/converter/hextodecconverter.ts

@@ -1,18 +1,18 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class HexToDecConverter implements Converter {
   getDisplayname(): string {
-    return "Convert hexadecimal to decimal";
+    return 'Convert hexadecimal to decimal';
   }
 
   getId(): string {
-    return "hextodec";
+    return 'hextodec';
   }
 
   convert(input: string): string {
     let n: number = parseInt(input, 16);
     if (isNaN(n)) {
-      throw new Error("The input seems not to be a valid hexadecimal number.")
+      throw new Error('The input seems not to be a valid hexadecimal number.')
     }
     return n.toString(10);
   }

src/app/converter/htmlentitiesdecoder.ts

@@ -1,19 +1,19 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class HTMLEntitiesDecoder implements Converter {
   getDisplayname(): string {
-    return "Decode HTML entities";
+    return 'Decode HTML entities';
   }
 
   getId(): string {
-    return "decodehtmlentities";
+    return 'decodehtmlentities';
   }
 
   convert(input: string): string {
     return input
-      .replace(/\&quot\;/g, "\"")
-      .replace(/\&gt\;/g, ">")
-      .replace(/\&lt\;/g, "<")
-      .replace(/\&amp\;/g, "&");
+      .replace(/\&quot\;/g, '\'')
+      .replace(/\&gt\;/g, '>')
+      .replace(/\&lt\;/g, '<')
+      .replace(/\&amp\;/g, '&');
   }
 }

src/app/converter/htmlentitiesencoder.ts

@@ -1,19 +1,19 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class HTMLEntitiesEncoder implements Converter {
   getDisplayname(): string {
-    return "Encode HTML entities";
+    return 'Encode HTML entities';
   }
 
   getId(): string {
-    return "encodehtmlentities";
+    return 'encodehtmlentities';
   }
 
   convert(input: string): string {
     return input
-      .replace(/\&/g, "&")
-      .replace(/\</g, "&lt;")
-      .replace(/\>/g, "&gt;")
-      .replace(/\"/g, "&quot;");
+      .replace(/\&/g, '&amp;')
+      .replace(/\</g, '&lt;')
+      .replace(/\>/g, '&gt;')
+      .replace(/\'/g, '&quot;');
   }
 }

src/app/converter/punycodedecoder.ts

@@ -1,5 +1,5 @@
-import {Converter} from "./converter";
-import {NativeLibraryWrapperService} from "../nativelibrarywrapper.service";
+import {Converter} from './converter';
+import {NativeLibraryWrapperService} from '../nativelibrarywrapper.service';
 
 export class PunycodeDecoder implements Converter {
 
@@ -7,11 +7,11 @@ export class PunycodeDecoder implements Converter {
   }
 
   getDisplayname(): string {
-    return "Decode from punycode";
+    return 'Decode from punycode';
   }
 
   getId(): string {
-    return "decodepunycode";
+    return 'decodepunycode';
   }
 
   convert(input: string): string {

src/app/converter/punycodeencoder.ts

@@ -1,5 +1,5 @@
-import {Converter} from "./converter";
-import {NativeLibraryWrapperService} from "../nativelibrarywrapper.service";
+import {Converter} from './converter';
+import {NativeLibraryWrapperService} from '../nativelibrarywrapper.service';
 
 export class PunycodeEncoder implements Converter {
 
@@ -7,11 +7,11 @@ export class PunycodeEncoder implements Converter {
   }
 
   getDisplayname(): string {
-    return "Encode as punycode";
+    return 'Encode as punycode';
   }
 
   getId(): string {
-    return "encodepunycode";
+    return 'encodepunycode';
   }
 
   convert(input: string): string {

src/app/converter/quotedprintabledecoder.ts

@@ -1,5 +1,5 @@
-import {Converter} from "./converter";
-import {NativeLibraryWrapperService} from "../nativelibrarywrapper.service";
+import {Converter} from './converter';
+import {NativeLibraryWrapperService} from '../nativelibrarywrapper.service';
 
 export class QuotedPrintableDecoder implements Converter {
 
@@ -7,18 +7,18 @@ export class QuotedPrintableDecoder implements Converter {
   }
 
   getDisplayname(): string {
-    return "Decode quoted printable";
+    return 'Decode quoted printable';
   }
 
   getId(): string {
-    return "decodequotedprintable";
+    return 'decodequotedprintable';
   }
 
   convert(input: string): string {
     try {
       return this.nativeLibraryWrapperService.quotedPrintable.decode(input);
     } catch (error) {
-      throw new Error("The input can not be interpreted as quoted-printable. May be corrupt?");
+      throw new Error('The input can not be interpreted as quoted-printable. May be corrupt?');
     }
   }
 }

src/app/converter/quotedprintableencoder.ts

@@ -1,5 +1,5 @@
-import {Converter} from "./converter";
-import {NativeLibraryWrapperService} from "../nativelibrarywrapper.service";
+import {Converter} from './converter';
+import {NativeLibraryWrapperService} from '../nativelibrarywrapper.service';
 
 export class QuotedPrintableEncoder implements Converter {
 
@@ -7,11 +7,11 @@ export class QuotedPrintableEncoder implements Converter {
   }
 
   getDisplayname(): string {
-    return "Encode quoted printable";
+    return 'Encode quoted printable';
   }
 
   getId(): string {
-    return "encodequotedprintable";
+    return 'encodequotedprintable';
   }
 
   convert(input: string): string {

src/app/converter/uricomponentdecoder.ts

@@ -1,12 +1,12 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class URIComponentDecoder implements Converter {
   getDisplayname(): string {
-    return "Decode URI component";
+    return 'Decode URI component';
   }
 
   getId(): string {
-    return "uricomponentdecode";
+    return 'uricomponentdecode';
   }
 
   convert(input: string): string {

src/app/converter/uricomponentencoder.ts

@@ -1,12 +1,12 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class URIComponentEncoder implements Converter {
   getDisplayname(): string {
-    return "Encode URI component";
+    return 'Encode URI component';
   }
 
   getId(): string {
-    return "uricomponentencode";
+    return 'uricomponentencode';
   }
 
   convert(input: string): string {

src/app/converter/uridecoder.ts

@@ -1,12 +1,12 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class URIDecoder implements Converter {
   getDisplayname(): string {
-    return "Decode URI";
+    return 'Decode URI';
   }
 
   getId(): string {
-    return "uridecode";
+    return 'uridecode';
   }
 
   convert(input: string): string {

src/app/converter/uriencoder.ts

@@ -1,12 +1,12 @@
-import {Converter} from "./converter";
+import {Converter} from './converter';
 
 export class URIEncoder implements Converter {
   getDisplayname(): string {
-    return "Encode URI";
+    return 'Encode URI';
   }
 
   getId(): string {
-    return "uriencode";
+    return 'uriencode';
   }
 
   convert(input: string): string {

src/app/converter/utf8decoder.ts

@@ -1,5 +1,5 @@
-import {Converter} from "./converter";
-import {NativeLibraryWrapperService} from "../nativelibrarywrapper.service";
+import {Converter} from './converter';
+import {NativeLibraryWrapperService} from '../nativelibrarywrapper.service';
 
 export class UTF8Decoder implements Converter {
 
@@ -7,18 +7,18 @@ export class UTF8Decoder implements Converter {
   }
 
   getDisplayname(): string {
-    return "Decode UTF-8";
+    return 'Decode UTF-8';
   }
 
   getId(): string {
-    return "decodeutf8";
+    return 'decodeutf8';
   }
 
   convert(input: string): string {
     try {
       return this.nativeLibraryWrapperService.utf8.decode(input);
     } catch (error) {
-      throw new Error("The input can not be interpreted a valid UTF-8 encoded string. May be corrupt?");
+      throw new Error('The input can not be interpreted a valid UTF-8 encoded string. May be corrupt?');
     }
   }
 }

src/app/converter/utf8encoder.ts

@@ -1,5 +1,5 @@
-import {Converter} from "./converter";
-import {NativeLibraryWrapperService} from "../nativelibrarywrapper.service";
+import {Converter} from './converter';
+import {NativeLibraryWrapperService} from '../nativelibrarywrapper.service';
 
 export class UTF8Encoder implements Converter {
 
@@ -7,18 +7,18 @@ export class UTF8Encoder implements Converter {
   }
 
   getDisplayname(): string {
-    return "Encode UTF-8";
+    return 'Encode UTF-8';
   }
 
   getId(): string {
-    return "encodeutf8";
+    return 'encodeutf8';
   }
 
   convert(input: string): string {
     try {
       return this.nativeLibraryWrapperService.utf8.encode(input);
     } catch (error) {
-      throw new Error("The input can not be encoded as UTF-8. May be corrupt?");
+      throw new Error('The input can not be encoded as UTF-8. May be corrupt?');
     }
   }
 }

src/app/converterregistry.service.ts

@@ -1,24 +1,24 @@
-import {Injectable} from "@angular/core";
-import {Converter} from "./converter/converter";
-import {Base64Encoder} from "./converter/base64encoder";
-import {Base64Decoder} from "./converter/base64decoder";
-import {URIEncoder} from "./converter/uriencoder";
-import {URIDecoder} from "./converter/uridecoder";
-import {URIComponentEncoder} from "./converter/uricomponentencoder";
-import {URIComponentDecoder} from "./converter/uricomponentdecoder";
-import {HTMLEntitiesEncoder} from "./converter/htmlentitiesencoder";
-import {HTMLEntitiesDecoder} from "./converter/htmlentitiesdecoder";
-import {DecToHexConverter} from "./converter/dectohexconverter";
-import {HexToDecConverter} from "./converter/hextodecconverter";
-import {DecToBinConverter} from "./converter/dectobinconverter";
-import {BinToDecConverter} from "./converter/bintodecconverter";
-import {QuotedPrintableDecoder} from "./converter/quotedprintabledecoder";
-import {QuotedPrintableEncoder} from "./converter/quotedprintableencoder";
-import {NativeLibraryWrapperService} from "./nativelibrarywrapper.service";
-import {PunycodeEncoder} from "./converter/punycodeencoder";
-import {PunycodeDecoder} from "./converter/punycodedecoder";
-import {UTF8Encoder} from "./converter/utf8encoder";
-import {UTF8Decoder} from "./converter/utf8decoder";
+import {Injectable} from '@angular/core';
+import {Converter} from './converter/converter';
+import {Base64Encoder} from './converter/base64encoder';
+import {Base64Decoder} from './converter/base64decoder';
+import {URIEncoder} from './converter/uriencoder';
+import {URIDecoder} from './converter/uridecoder';
+import {URIComponentEncoder} from './converter/uricomponentencoder';
+import {URIComponentDecoder} from './converter/uricomponentdecoder';
+import {HTMLEntitiesEncoder} from './converter/htmlentitiesencoder';
+import {HTMLEntitiesDecoder} from './converter/htmlentitiesdecoder';
+import {DecToHexConverter} from './converter/dectohexconverter';
+import {HexToDecConverter} from './converter/hextodecconverter';
+import {DecToBinConverter} from './converter/dectobinconverter';
+import {BinToDecConverter} from './converter/bintodecconverter';
+import {QuotedPrintableDecoder} from './converter/quotedprintabledecoder';
+import {QuotedPrintableEncoder} from './converter/quotedprintableencoder';
+import {NativeLibraryWrapperService} from './nativelibrarywrapper.service';
+import {PunycodeEncoder} from './converter/punycodeencoder';
+import {PunycodeDecoder} from './converter/punycodedecoder';
+import {UTF8Encoder} from './converter/utf8encoder';
+import {UTF8Decoder} from './converter/utf8decoder';
 
 @Injectable()
 export class ConverterRegistryService {
@@ -34,7 +34,7 @@ export class ConverterRegistryService {
 
   public getConverter(id: string): Converter {
     for (let i = 0; i < this.converters.length; i++) {
-      if (this.converters[i].getId() == id) {
+      if (this.converters[i].getId() === id) {
         return this.converters[i];
       }
     }
@@ -64,8 +64,8 @@ export class ConverterRegistryService {
 
   private registerConverter(converter: Converter): void {
     this.converters.forEach((c: Converter) => {
-      if (c.getId() == converter.getId()) {
-        throw new Error("Converter-ID " + converter.getId() + " is already registered!");
+      if (c.getId() === converter.getId()) {
+        throw new Error('Converter-ID ' + converter.getId() + ' is already registered!');
       }
     });
     this.converters.push(converter);

src/app/inputcomponentmanager.service.ts

@@ -1,5 +1,5 @@
-import {Injectable} from "@angular/core";
-import {Step} from "./step";
+import {Injectable} from '@angular/core';
+import {Step} from './step';
 
 @Injectable()
 export class InputComponentManagerService {
@@ -17,15 +17,15 @@ export class InputComponentManagerService {
   }
 
   public getNext(component: Step): Step {
-    let index: number = component.index;
-    if (index == this.components.length - 1) {
+    const index: number = component.index;
+    if (index === this.components.length - 1) {
       this.addComponent();
     }
     return this.components[index + 1];
   }
 
   public getFirst(): Step {
-    if (this.components.length == 0) {
+    if (this.components.length === 0) {
       this.addComponent();
     }
     return this.components[0];

src/app/nativelibrarywrapper.service.ts

@@ -1,10 +1,10 @@
-import {Injectable} from "@angular/core";
-import {Punycode} from "./punycode";
-import {Utf8} from "./utf8";
-import {QuotedPrintable} from "./quotedprintable";
-import * as NativeUtf8 from "utf8";
-import * as NativeQuotedPrintable from "quoted-printable";
-import * as NativePunycode from "punycode";
+import {Injectable} from '@angular/core';
+import {Punycode} from './punycode';
+import {Utf8} from './utf8';
+import {QuotedPrintable} from './quotedprintable';
+import * as NativeUtf8 from 'utf8';
+import * as NativeQuotedPrintable from 'quoted-printable';
+import * as NativePunycode from 'punycode';
 
 @Injectable()
 export class NativeLibraryWrapperService {

src/app/step.ts

@@ -1,11 +1,11 @@
-import {Converter} from "./converter/converter";
+import {Converter} from './converter/converter';
 
 export class Step {
-  public content: string = "";
+  public content = '';
   public selectedConverter: Converter = undefined;
   public index: number;
-  public error: boolean = false;
-  public message: string = "";
+  public error = false;
+  public message = '';
 
   constructor(index: number) {
     this.index = index;