Question 6 (10 marks) The app below lets users send SMS messages. SMS Message (6 / 160) Hello! Send a. Identify the syst

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Question 6 10 Marks The App Below Lets Users Send Sms Messages Sms Message 6 160 Hello Send A Identify The Syst 1 (369.06 KiB) Viewed 48 times

Question 6 (10 marks) The app below lets users send SMS messages. SMS Message (6 / 160) Hello! Send a. Identify the system status in the app. Explain why this system status is useful from the end users' perspective. [2 marks] b. Study the code excerpt of the app below. Suggest one most useful constraint that can be implemented through the checkLength function that determines the length of the input. Describe this constraint from the end users' perspective. Why is it most useful? [2 marks] <div class="container"> <div class="form-group mt-3"> <label for="msg">SMS Message (<span id="charcount">0</span> / 160)</label> <textarea class="form-control" id="msg" rows="3" oninput="checkLength()"></textarea> </div> <button type="submit" class="btn btn-primary" id="sendbtn" disabled>Send</button> </div> Page 15 of 18

c. Implement the constraint you have suggested. [6 marks] function checkLength(event) { Page 16 of 18