Issue in Displaying NaN values

[newphpcoder]

Hi..

 

I created a function and I encountered problem because I got a NaN values. And I want to resolve it..I don't want to display NaN values. instead of NaN I just want it blank.

 

here is my code:

function doz(oText){
    var P27_max = document.getElementById("P27_max").value;
    var P27_max_convert = parseFloat(P27_max) + parseFloat(1);   
    var P27_maxdoz = document.getElementById("P27_maxdoz").value = P27_max_convert;
    
    
    var P28_max = document.getElementById("P28_max").value;
    var P28_max_convert = parseFloat(P28_max) + parseFloat(2);
    var P28_maxdoz = document.getElementById("P28_maxdoz").value = P28_max_convert;
}

 

when I entered data in

P27_max so the P27_maxdoz was computed but the problem is the P28_max has also value 'NaN'.

 

How can I eliminate or did not display NaN

 

Thank you

 

 

[trq]

https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/isNaN

[newphpcoder]

I resolved it using this code:

 

    var P45_min = document.getElementById("P45_min").value;
    var P45_min_convert = parseFloat(P45_min) + parseFloat(13);
    if( !isNaN(P45_min_convert) ){
    var P45_mindoz = document.getElementById("P45_mindoz").value = P45_min_convert; 
    }

 

Thank you