linting changes, as well as removed an import that wasn't being used …

…in the spec file, no functional changes. looks good!

src/app/lib/elo.library.spec.ts

@@ -5,31 +5,30 @@
 
 import { Elo } from './elo.library';
 import { Score } from './util.library';
-import { TestBed } from '@angular/core/testing';
 
 /// Test results are calculated with the FIDE calculator:
 /// https://ratings.fide.com/calculator_rtd.phtml
 
 describe('Elo system', () => {
-	it('should be able to calcuate the right (low-level) elo', () => {
-		const playerA = new Elo(1456, 40);
-		const playerB = new Elo(1790, 40);
-		const result = 1491;
-		playerA.update(playerB.rating, Score.win);
-		expect(playerA.rating).toBe(result);
-	});
-	it('should be able to calcuate the right (mid-level) elo', () => {
-		const playerA = new Elo(1732, 20);
-		const playerB = new Elo(2047, 20);
-		const result = 1739;
-		playerA.update(playerB.rating, Score.draw);
-		expect(playerA.rating).toBe(result);
-	});
-	it('should be able to calcuate the right (high-level) elo', () => {
-		const playerA = new Elo(2761, 10);
-		const playerB = new Elo(2622, 10);
-		const result = 2754;
-		playerA.update(playerB.rating, Score.loss);
-		expect(playerA.rating).toBe(result);
-	});
+    it('should be able to calcuate the right (low-level) elo', () => {
+        const playerA = new Elo(1456, 40);
+        const playerB = new Elo(1790, 40);
+        const result = 1491;
+        playerA.update(playerB.rating, Score.win);
+        expect(playerA.rating).toBe(result);
+    });
+    it('should be able to calcuate the right (mid-level) elo', () => {
+        const playerA = new Elo(1732, 20);
+        const playerB = new Elo(2047, 20);
+        const result = 1739;
+        playerA.update(playerB.rating, Score.draw);
+        expect(playerA.rating).toBe(result);
+    });
+    it('should be able to calcuate the right (high-level) elo', () => {
+        const playerA = new Elo(2761, 10);
+        const playerB = new Elo(2622, 10);
+        const result = 2754;
+        playerA.update(playerB.rating, Score.loss);
+        expect(playerA.rating).toBe(result);
+    });
 });

src/app/lib/elo.library.ts

@@ -1,46 +1,54 @@
 import { Score } from './util.library';
 
 export class Elo {
-
-	private _rating: number;
-	private _K: number;
-	private _games: number;
-
-	constructor(rating?: number, k?: number) {
-		this._rating = rating ?? 1500;
-		this._K = k ?? 40;
-		if (this._K !== 10 &&
-			this._K !== 20 &&
-			this._K !== 40) this._K = 40;
-		this._games = this._K === 40 ? 0 : 30;
-	}
-
-	private expected(opponent: number): number {
-		let p = opponent - this._rating;
-		if (Math.abs(p) > 400) p = p < 0 ? - 400 : 400;
-		return 1 / (1 + Math.pow(10, p / 400));
-	}
-
-	/// Updates the current Elo according to
-	/// the opponent's Elo and the game score.
-	public update(opponent: number, score: Score) {
-		const E = this.expected(opponent);
-		this._rating += this._K * (score - E);
-		if (this._rating < 100) this._rating = 100;
-		if (this._rating > 3000) this._rating = 3000;
-		this._games++;
-		if (this._K === 10) return;
-		if (this._rating < 2400) {
-			this._K = this._games < 30 ? 40 : 20;
-		} else this._K = 10;
-	}
-
-	get rating(): number {
-		return Math.round(this._rating);
-	}
-
-	get games(): number {
-		return this._games;
-	}
-
+    private _rating: number;
+    private _K: number;
+    private _games: number;
+
+    constructor(rating?: number, k?: number) {
+        this._rating = rating ?? 1500;
+        this._K = k ?? 40;
+        if (this._K !== 10 && this._K !== 20 && this._K !== 40) {
+            this._K = 40;
+        }
+        this._games = this._K === 40 ? 0 : 30;
+    }
+
+    private expected(opponent: number): number {
+        let p = opponent - this._rating;
+        if (Math.abs(p) > 400) {
+            p = p < 0 ? -400 : 400;
+        }
+        return 1 / (1 + Math.pow(10, p / 400));
+    }
+
+    /// Updates the current Elo according to
+    /// the opponent's Elo and the game score.
+    public update(opponent: number, score: Score) {
+        const E = this.expected(opponent);
+        this._rating += this._K * (score - E);
+        if (this._rating < 100) {
+            this._rating = 100;
+        }
+        if (this._rating > 3000) {
+            this._rating = 3000;
+        }
+        this._games++;
+        if (this._K === 10) {
+            return;
+        }
+        if (this._rating < 2400) {
+            this._K = this._games < 30 ? 40 : 20;
+        } else {
+            this._K = 10;
+        }
+    }
+
+    get rating(): number {
+        return Math.round(this._rating);
+    }
+
+    get games(): number {
+        return this._games;
+    }
 }

src/app/lib/util.library.ts

@@ -39,7 +39,7 @@ export const enum RANK {
 export const enum Score {
     loss = 0,
     draw = 0.5,
-    win = 1,
+    win = 1
 }
 
 export function fileToString(file: FILE): string {