Open main.js file and inside the jQuery ready function create an event handler that

would run once the $$Calculate Area$$ button of the form is clicked. The event handler

should do the following tasks:

$2\mathrm{.}1.$ Retrieve the value of the $$Precision$$ drop box and save it in a variable called p$.$

$2\mathrm{.}2.$ Debugging step: Open your index.html in the browser$$s debugger watch the

value of p and be sure that the correct value is retrieved for all possible precision

values.

$2\mathrm{.}3.$ Retrieve the user entered value of the radius text field and save it in a variable

called r$.$

$2\mathrm{.}4.$ Debugging step: Open your index.html in the browser$$s debugger watch the

value of r and be sure that the correct value is retrieved.

$2\mathrm{.}5.$ Compute the area of the circle using the function computearea giving it the radius

value just retrieved.

$2\mathrm{.}6.$ Debugging step: Open your index.html in the browser$$s debugger watch the

value of a and be sure that the correct value is computed.

$2\mathrm{.}7.$ Produce the computed area, a$,$ to the area text field with a precision of p$.$

$2\mathrm{.}8.$ Debugging step: Open your index.html in the browser. Test the area with

different radius and precision values