
Опрос по массивам в JavaScript
Flashcard
•
Other
•
11th Grade
•
Practice Problem
•
Hard
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6 questions
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1.
FLASHCARD QUESTION
Front
Как создать массив в JavaScript?
Back
let arr = [1, 2, 3];
2.
FLASHCARD QUESTION
Front
Как получить первый элемент массива let fruits = ["Яблоко", "Банан", "Апельсин"]?
Back
fruits[0]
3.
FLASHCARD QUESTION
Front
Какой метод добавляет элемент в конец массива?
Back
push()
4.
FLASHCARD QUESTION
Front
Что делает метод pop()?
Options: Удаляет первый элемент массива, Добавляет элемент в начало массива, Удаляет последний элемент массива, Возвращает длину массива
Back
Удаляет последний элемент массива
5.
FLASHCARD QUESTION
Front
Как узнать длину массива?
Back
arr.length
6.
FLASHCARD QUESTION
Front
Что вернет [10, 20, 30].indexOf(20)?
Back
1
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