DRAG DROP
A JavaScript array is initialized as follows:
You write the following code to manipulate the array:
You need to determine the contents of the array.
Which four elements does the array contain in sequence? To answer, move the appropriate elements from the list of
elements to the answer area and arrange them in the correct order.
Select and Place:
Explanation:
References: https://www.bennadel.com/blog/1796-javascript-array-methods-unshift-shift-push-and-pop.htm
DRAG DROP
You are creating a web page that tests a users ability to accurately type text. The validation should be case-insensitive.
How should you complete the code? To answer, drag appropriate functions to the correct locations. Each function may be
used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Select and Place:
Explanation:
References: https://www.w3schools.com/jsref/prop_text_value.asp
HOTSPOT
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Hot Area:
Explanation:
References:
http://knowledgehills.com/javascript/external-javascript-syntax-disadvantages.htm
https://www.w3schools.com/js/js_whereto.asp https://www.w3schools.com/tags/att_script_src.asp
DRAG DROP
Your instructor has asked you to implement code that would display a two-dimensional array of any size inside a
You write the following code:
You need to complete the code.
Which three segments should you use to develop the solution? To answer, move the appropriate code segments from the
list of code segments to the answer area and arrange them in the correct order.
Select and Place:
Explanation:
References: http://www.plus2net.com/javascript_tutorial/array-two-dimension.php
DRAG DROP
You are using JavaScript to create a calculator.
You create the following HTML. Line numbers are included for reference only.
You must create a function named add() that adds the values in the a and b input elements and displays the result in the
result input element.
You define the following function in JavaScript:
function add() { }
You need to complete the body of the function.
Which three code segments should you use to develop the solution? To answer, move the appropriate code segments from
the list of code segments to the answer area and arrange them in the correct order.
NOTE: Each correct selection is worth one point.
Select and Place:
Explanation:
References: https://www.w3schools.com/jsref/jsref_eval.asp
You are designing a web page with a script that must dynamically change the content of a paragraph element to display the
value returned by the function randomQuote().
You have created the following code. Line numbers are included for reference only.
Which code segment should you use at line 08?
C
Explanation:
References: https://www.w3schools.com/html/html_scripts.asp
You are creating a JavaScript program for an accounting system.
You create the following code. Line numbers are included for reference only.
You evaluate the code to ensure that it follows JavaScript best practices.
Which line should you change?
C
This question requires that you evaluate the underlined text to determine if it is correct.
You review the following JavaScript code:
When this code executes, the value of x is 0.
Review the underlined text. If it makes the statement correct, select No change is needed. If the statement is incorrect,
select the answer choice that makes the statement correct.
A
Explanation:
References: https://www.w3schools.com/js/js_arithmetic.asp
HOTSPOT
You are designing a function that allows you to perform unit tests on other functions in a library. You will invoke each library
function by using the eval JavaScript function. If an exception occurs when invoking a function, you want to display a
message box with the following message:
The function does not exist.
How should you complete the code? To answer, select the appropriate code segment in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:
Explanation:
References: https://www.w3schools.com/jsref/jsref_try_catch.asp
You are writing an engineering application. You need to create a function that will round numbers to 3 or more decimal
places.
You need to create a function that receives the following two parameters:
The value parameter is the number to be formatted
The digits parameter is the number of digits to display The function must return the value with the number of digits
specified.
Which function should you use?
C
Explanation:
References: https://www.w3schools.com/jsref/jsref_tofixed.asp