Which of the following is a single global function defined in the jQuery library?
jQuery()$()Queryanalysis()global()
Correct answer(s):
jQuery()
Subject
Programming Language
Practice related MCQ quizzes and improve step by step.
Practice by Education Level
Subtopics under Programming Language
Quizzes in Programming Language
Java and JavaScript are same language?
Correct answer(s):
- False
Who is the inventor or JavaScript?
Correct answer(s):
- Brendan Eich
Inside which HTML element do we put the JavaScript?
Correct answer(s):
<script>
Which of the following is correct about C#?
Correct answer(s):
- It is component oriented.
- It can be compiled on a variety of computer platforms.
- It is a part of .Net Framework.
The default access specifer for the class members is?
Correct answer(s):
- private
What’s the difference between unset() and unlink()
Correct answer(s):
unset()sets a variable to "undefined" andunlink()deletes a file from the file system.
What’s the difference between the include() and require() functions?
Correct answer(s):
require()function exits with a fatal error if the file can't be included, while theinclude()function may still pass and jump to the next step in the execution.
What will be output in console:
var animals = ['Tiger', 'Lion', 'Camel', 'Cow', 'Duck']; console.log(animals.slice(2, 4));
Correct answer(s):
Array ["Camel", "Cow"]
What is going to display with this js code:
var myArray = ['a', 'b', 'c']; console.log(myArray[-1]);
Correct answer(s):
- undefined
When connecting to a database through PHP, do you use mysql or mysqli?
Correct answer(s):
- mysqli
Before insert information into a database for any reason, you need to escape the content so you don’t get SQL hacked (injected)
Correct answer(s):
- true
How do you store passwords?
Correct answer(s):
- One way encryption.
Which of these lines of code would replace the content of a webpage with “Saaaaaakib”?
Correct answer(s):
document.body.innerHTML = "Saaaaaakib";
What sort of data type does the document variable store?
Correct answer(s):
- object
When you’re writing JS on a webpage, what is the name of the global variable that represents the DOM?
Correct answer(s):
- document
The DOM is the set of functionality that browsers provide to enable developers to access and manipulate webpages. What does DOM stand for?
Correct answer(s):
- Document Object Model
const team = [
'Mashrafi',
'Sakib',
'Mahmudullah',
'Mushfiq',
'Tamim',
'Rubel',
'Aftab',
'Razzaq',
'Rafiq'
];
const [captain, assistant, ...players] = team;
consoloe.log(players);
What is the output of consoloe.log(players); in your console?
Correct answer(s):
Array ["Mahmudullah", "Mushfiq", "Tamim", "Rubel", "Aftab", "Razzaq", "Rafiq"]
const team = [
'Mashrafi',
'Sakib',
'Mahmudullah',
'Mushfiq',
'Tamim',
'Rubel',
'Aftab',
'Razzaq',
'Rafiq'
];
const [captain, assistant, ...players] = team;
consoloe.log(captain);
What is the output of consoloe.log(captain); in your console?
Correct answer(s):
- Mashrafi
Considering the following snap of code, what is the expected result?
const gotNumber = 46;
if (gotNumber>45) {
var division = 'Second Division';
}
console.log(`Division is ${division} by number ${gotNumber}`);
Correct answer(s):
- Division is Second Division by number 46