You are developing a customer web form that includes the following HTML input field.<input id="txtValue"/>If a customer enters a value in the input field, then it must be a numeric value.You need to add validation to the input field.Which HTML 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?
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 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 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?
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:
