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The idea is to create a set of “validation descriptors” associated with each element in a form.
The “validation descriptor” is nothing but a string specifying the type of validation to be performed.
In order to do that, we first calculate total height in inches, by multiplying feet portion by 12 and adding the result to the inches portion.
Surprisingly, some of the websites simply calculate BMI value without offering its description.
The last procedure that we utilize is Clear to reset values of our calculator when clicking on the ‘Reset’ button.
I’m very impressed with the power of 1 or 2 simple CSS statements.
/* BMI Calculator function*/ function BMICalculate() /* Accept input variables*/ /* Slider function to dynamically display inches portion of the height selected */ function Slider() /* Interpretation of BMI value */ function get Description(this BMI) /* Reset Button */ function Clear() Java Script is the “brain” of this application.
Using client side Java Script is an efficient way to validate the user input in web forms.