Cuestionario de Certificación JS 2024
Quiz
•
Computers
•
12th Grade
•
Easy
Nixon Lopez
Used 12+ times
FREE Resource
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17 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Variable x has a value of 5, variable y has a value of 8.
Select True if the expression evaluates to true, or False if it does not.
x < 4 || y > 8
True
False
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Your instructor has the following exception handling requirements.
The displayInfo() function must use exception handling.
The display() function must always run, regardless of whether an exception occurs.
If there is an exception, the script must call the logDisplayInError() and correctDisplayInfo() functions.
What is the correct opction for complete the code?
catch
catch(msg)
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
You are writing JavaScript code that manipulate dates.
You need to initialize a Date object with the date January 1, 2021 by using the year, month, and date parameters.
Complete the code by selecting the correct option.
var date = new Date( 2021 , _______ , ________)
0
1
01
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the correct syntax to determine if a string called str is empty?
str == null
str == "null"
str == ""
str == "empty"
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
You are creating a JavaScript program for an accounting system.
You evaluate the code to ensure that it follows JavaScript best practices.
Which two lines of code contain reserved words? (Choose 2)
01
02
03
04
05
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You are helping a coworker test the following form.
The form will submit to a script named contact.
True
False
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Complete the code by selecting the correct option from each dropdown list.
The page allows users to create a problem ticket and send an email to help@societyrugby.com. The email contains a problem description, the user’s name and user’s phone number.
You need to perform custom validation of the user’s phone number (yourPhoneNumber) when the page attempts to send the problem ticket (problemTicket).
Which property, method, or event of the form object should you use?
target
onclick
onsubmit
setCustomValidity
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