java script function to curve grades increments of 10 see pictures

Instructions Tests curveGrades Create a function called curveGrades that increments each value in an Object by 10 1 parameter grades - an Object of subjectigrade pairs returns the grades object after each grade has been incremented by 10 How to create this function Use a for-in loop to iterate over grades Use Bracket Notation to increment the value of each grade by 10 using - 10; After the loop return grades Example Function Calls var myrades = { Spanish: 75 bioloky: 90. history: 88 curverades(myGrades); > returns { spanish85, biology: 100 Auto-Run OFF Recet 1 function curveGrades (grades) { 2 11 YOUR CODE BELOW HERE IT 6 YOUR CODE ABOVE HERE /