updatedeps: lint

Author: Sven Ulrich

package.json

@@ -31,7 +31,10 @@
     "@types/chai": "^4.2.7",
     "@types/mocha": "^9.1.1",
     "@types/node": "^18.7.11",
+    "@typescript-eslint/eslint-plugin": "^5.34.0",
+    "@typescript-eslint/parser": "^5.34.0",
     "chai": "^4.2.0",
+    "eslint": "^8.22.0",
     "mocha": "^10.0.0",
     "ts-node": "^10.9.1",
     "typescript": "^4.7.4",

tests/tests.ts

@@ -4,13 +4,13 @@ import { Fruit } from './fruit';
 import { expect } from 'chai';
 import 'mocha';
 
-export const EOL = "\r\n";
+export const EOL = '\r\n';
 
 describe('String.IsNullOrWhitespace', () => {
 
     it('should return true on null string', () => {
         const teststring: string | null = null;
-        let result = String.IsNullOrWhiteSpace(teststring!);
+        let result = String.IsNullOrWhiteSpace(teststring);
         expect(result).to.equal(true);
         result = String.isNullOrWhiteSpace(teststring);
         expect(result).to.equal(true);