2-misoldan hosil bo’lgan objectning kalitlari va qiymatlari yig’indisini toping. (Object.keys(), Object.values())

Mentor: Aziz Abduhakimov

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Shunday object berilganki, uning kalitlari mahsulotlardan va qiymatlari esa ularning narxlaridan tuzilgan. Barcha mahsulot qancha turishini toping. (Object.values())

Mentor: Aziz Abduhakimov

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Object kalitlarining barchasi string toifasidagi ma’lumotlardan tuzilgan bo’lsa true, aks holda false qiymat qaytaruvchi defineObject nomli funksiya hosil qiling. (Object.keys())

Mentor: Aziz Abduhakimov

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Stringlar massivi berilgan. Shunday object hosil qilingki, o’sha objectning kalitlari massiv elementlaridan va qiymatlari esa ularning uzunligidan iborat bo’lsin. (for)

Mentor: Aziz Abduhakimov

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Tavsiyam: Avval masalani oqib ko'ring keyin o'ziz uchun bir yechim tayyorlab keyin videodagi yechim bilan solishtiiring, agar bizdagi xatolarni topsangiz kommentda yozib keting. Xatolarimiz haqida eslatish biz uchun yaxshilik bo'ladi albatta)

Zerikkanda ko'rib chiqarsizlar

Mentor: Aziz Abduhakimov

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Agar object qiymatlari ichida falsy qiymatlar bo’lsa, ularni o’chirib yangi object hosil qiling. (Object.keys())

Input: { a: false, b: 12, c: true, d: 0 }
Output: { b: 12, c: true }

Mentor: Aziz Abduhakimov

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Bir necha takrorlanuvchi sonlar ishtirok etgan massivdan shunday obyekt hosil qilingki, bu object kalitlari massivning takrorlanmas sonlaridan, qiymatlari esa o’sha sonlarning massivda necha marta ishtirok etganidan tuzilgan bo’lsin. (for)

Input: [ 7, 8, 4, 5, 7, 5, 4, 8, 5, 4, 7, 9 ]
Output: { 7: 3, 8: 2, 4: 3, 5: 3, 9: 1 }

Mentor: Aziz Abduhakimov

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Quyidagi ko'rinishda objectlarlardan tuzilgan massiv beriladi. Agar alreadyRead propertysi true bo'lsa o'sha kitob o'qigan deb chiqarilsin, aks holda o'qilmagan.

Input:
const books = [
  {
    title: "Halqa",
    author: "Akrom Malik",
    alreadyRead: false,
  },
  {
    title: "Dunyo ishlari",
    author: "O'tkir Hoshimov",
    alreadyRead: true,
  },
  {
    title: "Vaqtning qadri",
    author: "Abdulfattoh Abu G'udda",
    alreadyRead: false,
  },
];

Output:
1. Akrom Malikning "Halqa" kitobi o'qilmagan;
2. O'tkir Hoshimovning "Dunyo ishlari" kitobi o'qilgan;
3. Abdulfattoh Abu G'uddaning "Vaqtning qadri" kitobi o'qilmagan;

Mentor: Aziz Abduhakimov

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Mahsulotlar massividagi objectlarni sonini, chegirmasini hisobga olib, umumiy summani hisoblang.

Input: const products = [
  { name: "Product 1", price: 20000, discount: 10, quantity: 5 },
  { name: "Product 2", price: 10000, discount: 20, quantity: 4 },
  { name: "Product 3", price: 15000, discount: 8, quantity: 10 },
  { name: "Product 4", price: 18000, discount: 5, quantity: 6 },
  { name: "Product 5", price: 5000, discount: 10, quantity: 16 },
];

Mentor: Aziz Abduhakimov

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Objectning kalitlaridan va qiymatlaridan iborat bo'lgan massiv tuzing.

Input: const obj = {
  "it": 20,
  "mushuk": 10,
  "sigir": 200,
  "tovuq": 2
}

Output: ["it", 20, "mushuk", 10, "sigir", 200, "tovuq", 2]

Mentor: Aziz Abduhakimov

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GPA ni hisoblovchi dastur tuzing.

GPA = (grade1 * kredit1 + grade2 * kredit2 + ...) / (kredit1 + kredit2 + ...)

const grades = [
  { name: "Fizika", grade: 4, kredit: 6 },
  { name: "Matematika", grade: 5, kredit: 6 },
  { name: "Tarix", grade: 4, kredit: 4 },
  { name: "Dasturlash", grade: 5, kredit: 8 },
  { name: "Kibrxavfsizlik", grade: 4, kredit: 8 },
];

Mentor: Aziz Abduhakimov

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Nechta to'g'ri va noto'g'ri javob topganligini toping.

const rightAnswers = {1: "B",2: "A",3: "C", 4: "D",5: "B", 6: "C", 7: "A", 8: "D", 9: "A",10: "B",};

Mentor: Aziz Abduhakimov

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Qiymatlari sonlardan iborat obj nomli object berilgan. Qiymatlarini n martaga oshiruvchi getMultipleValues(n) nomli funksiya yozing.

Mentor: Aziz Abduhakimov

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Quyidagi obyektdan destructing orqali barcha qiymatlarini oling.

const product = {
  name: "Iphone 14",
  company: {
    name: "Apple",
    price: "200 mlrd",
    founder: {
      firstName: "Steve",
      lastName: "Jobs",
      birthDate: 1950,
    },
  },
};

Mentor: Aziz Abduhakimov

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Quyidagi massivdagi barcha o'quvchilarni protcentlarining o'rtacha qiymatini toping.

Mentor: Aziz Abduhakimov

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grade propertyga protcent 90-100 o'rtasida bo'lsa 5, 80-90 o'rtasida bo'lsa 4, 70-80 o'rtasida bo'lsa 3 bahoni, qolgan holatlarda 2 bahoni o'zlashtiring.

Mentor: Aziz Abduhakimov

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isPassed propertyga protcent 70 dan o'tsa va teng bo’lsa true, aks holda false qiymat o'zlashtirilsin.

Mentor: Aziz Abduhakimov

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Necha kishi imtihondan o'tdi va necha kishi imtihonda o'ta olmadi shuni ham hisoblang.

Mentor: Aziz Abduhakimov

Backgroundagi ovozlarga ahamyat bermang uyda little mexmonlar bor:(

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Lesson: String | Part 1

Mentor: Aziz Abduhakimov

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Lesson: String | Part 2

Mentor: Aziz Abduhakimov

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