From 16f790a9d9e6cd524feda769aebfb542328a1db6 Mon Sep 17 00:00:00 2001
From: "DESKTOP-P9VU163\\admin" <rumyancevkv@mail.ru>
Date: Wed, 2 Jul 2025 11:23:36 +0300
Subject: [PATCH] add beginner code with

---
 src/index.ts | 145 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)

diff --git a/src/index.ts b/src/index.ts
index cc27af2..3598dfc 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,3 +1,146 @@
+interface People {
+    name: string;
+    age: number | undefined;
+}
+
+let people01: People = {
+    name: "Kostya",
+    age: undefined
+};
+
+let people02: People = {
+    name: "Yura",
+    age: 32
+}
+
+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 = '';
+        }
+    }
+}
+
+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);
+
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+
 //Обучение ЦИКЛАМ
 
 //lesson 1.5 SUM OF NUMBERS
@@ -41,6 +184,8 @@ function SUMMA (chislo: number){
   let result = 5;
   console.log(`summa of numbre <1000: ${result}`);
 }
+
+
 /*
 function DrawLine(count: number, countP: number){ //рисуем треугольник из звездочек
   const minimalString = '*';