
MD1_Array
Quiz
•
Education
•
1st - 5th Grade
•
Practice Problem
•
Medium
Bach Nguyen
Used 3+ times
FREE Resource
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đâu là cú pháp khai báo Array?
let A = [1,2,true,false, "Hello"]
let todo = "go to work at 8"
let number = 120;
let todoList = {
name: Tiu,
age: 20 }
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
let monAn = ["com", "thit", "ca", "trung", "rau"];
Mảng có độ dài là 4 và có 4 chỉ số index
Mảng có độ dài là 6 và có 5 chỉ số index
Mảng có độ dài là 5 và có 4 chỉ số index
Mảng có độ dài là 5 và có 5 chỉ số index
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho đoạn code sau, đâu là đáp án đúng?
let number = [10, 20, 30, 40, 50, 60];
let indexArray = number[2];
console.log(indexArray);
10
20
30
40
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
let languages = ["Javascript", "ReactJS", "NodeJS", "NestJS", "HTML", "CSS"];
for (let i = 0; i < languages.length; i++) {
console.log(i);
}
6
Javascript, ReactJS, NodeJS, NestJS, HTML, CSS
5
Javascript, ReactJS, NodeJS
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kết quả đoạn code sau là gì?
const myArray = ['item 0', 'item 1', 'item 2'];
myArray.push('item 3');
myArray.pop();
console.log(myArray);
['item 0', 'item 1', 'item 2'];
[ 'item 1', 'item 2', 'item 3'];
['item 0', 'item 1', 'item 2', 'item 3'];
myArray['item 0', 'item 1', 'item 2', 'item 3'];
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có mấy cách thêm phần tử vào mảng? (sử dụng kiến thức đã học)
3
4
5
6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vị trí index các phần tử trong mảng được đếm bắt đầu từ số ?
1
2
3
Khác
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