You are testing the value of the following variable in JavaScript.
var height = “300”;
A block of code must execute if the following conditions are true:
The height variable is set to 300
The height variable is of type string
You need to implement the code to run the test.
Which line of code should you use?

DRAG DROP
You are creating a function by using JavaScript. The function accepts an object as the parameter and returns a
string that identifies the data type of the object.
You have the following requirements:
The function must return “Number” if the object is a number
The function must return “String” if the object is a string
The function must return “Unknown” if the object is neither a number nor a string
You need to implement the function to meet the requirements.
How should you build the code segment? (To answer, drag the appropriate word to the correct location in the
code segment. Each word 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:

You are creating a JavaScript function to display the current version of a web application
You declare a button as follows.
<input type=”button” id=”About” value=”About” />
You need to create an event handler for the button by using an anonymous function.
Which code segment should you use?

HOTSPOT
You are developing an online shopping application that accepts credit cards for payment.
If the credit card number is invalid, the application must:
Generate an error
Assign “200” to the error number
Assign “Invalid” to the error description
You need to write the code that meets the requirements.
How should you write the code? (To answer, select the appropriate option from the drop-down list in the answer
area.)
Hot Area:

DRAG DROP
You are developing an application that reads information from a file.
The application must:
Execute a block of code if there is an error accessing the file
Execute a second block of code whether or not there is an error accessing the file
You need to ensure that the error handling requirements are met.
Which three statements should you implement in sequence? (To answer, move the appropriate statements
from the list of actions to the answer area and arrange them in the correct order.)
Select and Place:

You are developing an application that consumes an external web service that returns the latest stock rate.
The application has two methods:
The getResults() method makes an AJAX web service request
The ShowRate() method displays the stock rate from the web service response
You need to ensure that the ShowRate() method always displays the latest stock rate.
Which code segment should you use?

You are developing a customer web form that includes following HTML.
<input id=”txtValue”/>You need to develop the form so that customers can enter only a valid country code consisting of three English
alphabet characters.
Which code segment should you use?

You are developing a web page that consumes a Windows Communication Foundation (WCF) service. The
page includes the following code segment.
var xhr = new XMLHttpRequest() ;
The page uses the xhrHandler() method to listen for changes to the request status of the WCF service calls. It
uses the xmlToJavaScript() method to convert the response from the WCF service to a JavaScript object.
The xhrHandler() method must be called automatically each time the request status changes.
You need to add the event handler to the request object.
Which line of code should you use?

You are developing a web form that includes the following HTML.
<input id=”txtValue” type=”text” />
You need to ensure that a value is entered into txtValue before the form is submitted.
Which code segment should you use?

You are developing a customer web form that includes the following HTML.
<input id=”txtValue”/>
You need to change the HTML markup so that customers can enter only a valid three-letter country code.
Which HTML should you use?