Lesson 1 complete

src/index.ts

@@ -1,120 +1,26 @@
-interface People {
-    name: string;
-    age: number | undefined;
+function CalculateRectangleArea(sideA: number, sideB: number) : number {
+  return sideA * sideB;
 }
 
-let people01: People = {
-    name: "Kostya",
-    age: undefined
-};
+//Virtual console
+let chisloOne: string = '2';
+let chisloTwo: string = 'A';
 
-let people02: People = {
-    name: "Yura",
-    age: 32
+//Solution
+let sideA = Number.parseInt(chisloOne, 10);
+let sideB = Number.parseInt(chisloTwo, 10);
+
+// && - AND
+// || - OR
+// !
+if (Number.isNaN(sideA) || sideA <= 0 ){
+  console.log(`Your first value is invalid: ${sideA}`)
+}
+if (Number.isNaN(sideB) || sideB <= 0){
+  console.log(`Your second value is invalid: ${sideB}`)
 }
 
-people01.age = 60;
-// console.log(people01);
-// console.log(JSON.stringify(people01));
-// console.log(people01.age);
-console.log(`${people01.name} имеет возраст ${people01?.age ?? '40'}`); //Kostya --- 60
-console.log(`${people02.name} имеет возраст ${people02?.age ?? '40'}`); //Yura --- 32
-console.log(`${people01.name} имеет возраст ${people02?.age ?? '40'}`);
-
-interface PeopleLocation extends People {
-    location: string;
-}
-
-let peopleLocation01: PeopleLocation = {
-    name: "djdf",
-    age: 42342,
-    location: "dafdf"
-}
-class ProcessingPeoples implements PeopleLocation {
-    name: string;
-    age: number | undefined;
-    location: string = '';
-
-    constructor(name: string){
-        this.name = name;
-    }
-}
-
-class ProcessingPeoplesExt extends ProcessingPeoples {
-    isActive: boolean = false;
-
-    constructor(name: string, isActive: boolean){
-        super(name);
-        if(isActive) {
-            this.location = 'Gorkyi street';
-        }
 else{
-            this.location = '';
-        }
-    }
+  console.log(`Area of rectangle is: ${CalculateRectangleArea(sideA, sideB)}`);
 }
 
-let a: ProcessingPeoples = new ProcessingPeoplesExt("Vasya", true);
-
-class Duck {
-    type: string = 'Duck';
-    weight: number = 0;
-    log(){
-        console.log("I'm simple duck");
-    }
-}
-
-interface Eateable {
-    eat(): void;
-}
-
-class GreyDuck extends Duck implements Eateable{
-    constructor() {
-        super();
-        this.type = 'GreyDuck'
-    }
-    override log(){
-        console.log("I'm grey duck");
-    }
-
-    eat(){
-        console.log("I'm eat");
-    }
-}
-
-class RedDuck extends Duck implements Eateable {
-    constructor() {
-        super();
-        this.type = 'RedDuck'
-    }
-    eat(): void {
-        console.log("I'm eat");
-    }
-    override log(){
-        console.log("I'm red duck");
-    }
-}
-
-let duck1 = new RedDuck();
-let duck2 = new GreyDuck();
-
-let array: Eateable[] = [
-    duck1,
-    duck2
-];
-
-for (let item of array) {
-    item.eat();
-}
-
-let array2: Duck[] = [
-    duck2,
-    duck1
-];
-
-for (let item of array2) {
-    item.log();
-}
-
-array2.filter(item => "eat" in item);
-

src/input.ts

@@ -0,0 +1,19 @@
+import readline from 'node:readline';
+
+export function ConsoleInput(text: string): string {
+
+    let result: string = '';
+
+    const rl = readline.createInterface({
+        input: process.stdin,
+        output: process.stdout,
+    });
+
+    rl.question('Enter something:', value => {
+        result = value;
+        rl.close;
+    });
+
+    return result;
+}
+