Question

i have:

var str="100px";
var number = str.split("px");
number = number[0];

var km = "100px";
var numberk = km.split("px");
numberk = numberk[0];

var gim = numberk+100;
var kim = number+100;
var fim = number+numberk;
document.write(gim+'<br>'+kim+'<br>'+jim+'<br>');

i would be thankfull if someone could me answere why the result are added like string rather than nummerical number in javascript i have used the isNaN(); function which shows this as a legal number. So how can this problem be solved.

thanks.

Answer 1

You could use the parseInt function in order to convert the string returned when spliting into integer:

number = parseInt(number[0], 10);
numberk = parseInt(numberk[0], 10);

Now the 2 variables are integers and you could perform integer operations on them.