Question

I’m trying to use javascript to change a string to an int.

var intVal = gSpread1.Text * 1;

I want intVal‘s Type to be int.

I can get an int value, if gSpread1.Text is smaller than 1000.

But if gSpread1.Text is larger than 1000, intVal returns NaN

What is the correct way to use ParseInt to ensure that it always returns an int value?

Answer 1

Did you try intVal = parseInt(gSpread1.Text, 10);

The 10 is called the radix, and indicate the numeral system to use.

UPDATE: There is as well a useful shortcut using the + symbol.
eg: +gSpread1.Text will convert the string to a number. And will return an integer or a float depending on the string value.