Question

I am using Jquery.Ajax and want to do some addition with the ajax response and predefined variable. My code is as follows –

success: function(response)
{
    $('#net_amount').html("$"+(credit+response));
}

Assuming ‘response’ as 10 and ‘credit’ as 20, it prints 2010. I want it to be 30 (20+30).

What shall I do ?

Answer 1

Because + is used for concatenation in javascript as well as the addition, you need to ensure the type of your variables is numerical, not a string.

Your options are to use parseInt() and parseFloat(). I would suggest the latter as you are dealing with monetary values in your example.

success: function(response) {
    $('#net_amount').html("$" + (parseFloat(credit) + parseFloat(response)));
}