You are troubleshooting an application.Users report that the UI is slow to respond.You need to improve UI responsiveness by moving application tasks to web workers.Which two tasks can you move to achieve this goal? (Each correct answer presents a complete solution. Choose two.)
HOTSPOT -You develop an HTML messaging application that allows users to send messages. The messages can have an optional file attachment that is identified by a filename.You use the following function to send a message:You need to send a message with a file attachment.How should you complete the relevant code? (To answer, select the appropriate option from each drop-down list in the answer area.)Hot Area:
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 develop an interactive scalable vector graphic (SVG) application.You write the following code (Line numbers are included for reference only.):You need to increase the size of the circle by 50 percent.Which code segment should you insert at line 02?
DRAG DROP -You develop an HTML application that calls a web service to retrieve JSON data. The web service contains one method named GetFullName that returns anObject named data. The data object contains two properties named GivenName and Surname.You need to load data from the web service to the webpage.How should you complete the relevant code? (To answer, drag the appropriate code segment or code segments to the correct location or locations in the answer area. Use only code segments that apply.)Select and Place:
DRAG DROP -You are validating user input by using JavaScript and regular expressions.A group of predefined regular expressions will validate two input fields:✑ An email address in a function named validateEmail (for example,[email protected])✑ A nine-digit number that allows optional hyphens after the second and fifth character in a function named validateSSN(for example, 555555555 or 555-55-5555)You need to use the correct expression to validate the input.Which expression should you insert into each function? (To answer, drag the appropriate regular expression statement to the correct location. Each regular expression statement 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:
