Define a JavaScript function named showGrades which does not have any parameters. Your function should create and return an array containing 3 Numbers. The values for each of these entries should be: get the value from the div whose id is "GradeA" and store it at index 0 of your array; get the value from the div whose id is "Passing" and store it at index 1 of your array; and get the value from the div whose id is "Learning" and store it at index 2 of your array. Your must then encode the array as a JSON blob and return that JSON blob.

Write a new lc-3 trap subroutine (i.e. a subroutine that will be invoked via the trap instruction) that will receive a numeric digit entered at the keyboard (i.e. an ascii character), echo it to the screen, and return in r0 the corresponding numeric value: so if the user types the digit '7', the character '7' will appear on the screen, but the value returned in r0 will be b0000 0000 0000 0111 (#7) you may not use any trap calls in your code - you must implement the "polling" code that interrogates the keyboard status and data registers. ; getnum_tsr ; a subroutine for obtaining a numeric value ; given ascii numeric digit input to keyboard. ; the numeric digit is echoed to the console (e.g. '7' = b0000 0000 0011 0111), ; but the value returned in r0 is the actual numeric value ; corresponding to the digit (e.g. b0000 0000 0000 0111 =