question Re: How to convert variable 'single line text' in an integer? in Developer forum

How to convert variable 'single line text' in an integer?

davide_fais — Tue, 16 May 2017 16:52:27 GMT

Hi ServiceNow Community,

I've a variable type 'single line text' and I'd like convert this in a integer value, for exampe:

var number=g_form.getValue('u_variable_number');

if (number > 10)

number ++

etc

How can I do this?

Thanks,

Best Regards.

Re: How to convert variable 'single line text' in an integer?

Patrick Fedigan — Tue, 16 May 2017 17:00:54 GMT

Hello Davide,

You can use the parseInt(""); function to have a string return an integer

For example

var number = g_form.getValue('u_variable_number');

var number = parseInt(number);


if(number > 10) {

         number++;

}

Re: How to convert variable 'single line text' in an integer?

BALAJI40 — Tue, 16 May 2017 17:03:28 GMT

Try this one

var number=g_form.getIntValue('u_variable_number');

if (number > 10)

number ++

etc

Re: How to convert variable 'single line text' in an integer?

Sharique Azim — Tue, 16 May 2017 17:28:30 GMT

Hi Davide,

Just to modify the code,

var val= g_form.getValue('u_variable_number');
var number = parseInt(val);
if(number > 10) {
number++;
}

Should be used

Regards,

Shariq

mark helpful if it helps

Re: How to convert variable 'single line text' in an integer?

randrews — Tue, 16 May 2017 21:55:19 GMT

converting a single line text to an integer is generally a bad idea.. when you find an A for example is that the number 10 <in base 16> or is it the letter A? .. hard to tell and harder to program around.. while the solutions given will work i would strongly suggest you retire that field from the form by unchecking active and add a NEW integer field that you can use for this purpose...

then, if required, write a background script to back-fill this field from the existing single line text field.

Re: How to convert variable 'single line text' in an integer?

drjohnchun — Tue, 16 May 2017 22:40:58 GMT

If you decide to use the parseInt() function, best practice is to specify the second parameter for radix, which is 10 for the decimal system. You might end up with unexpected results if you omit it, as it says in parseInt() - JavaScript | MDN:

If radix is undefined or 0 (or absent), JavaScript assumes the following:

If the input string begins with "0x" or "0X", radix is 16 (hexadecimal) and the remainder of the string is parsed.
If the input string begins with "0", radix is eight (octal) or 10 (decimal). Exactly which radix is chosen is implementation-dependent. ECMAScript 5 specifies that 10 (decimal) is used, but not all browsers support this yet. For this reason always specify a radix when using parseInt.
If the input string begins with any other value, the radix is 10 (decimal).

If the first character cannot be converted to a number, parseInt returns NaN.

Hope this helps.

Please feel free to connect, follow, mark helpful / answer, like, endorse.

John Chun, PhD PMP