Getting NaN error while using parseInt function

Question

I am getting Nan error when I am using parseInt with date strings. I am getting finalRelease and Original Release value in form of string. I am splitting the value and try to access using index. I am getting correct month in case of finalMonth but it is showing Nan in case of originalMonth.

finalRelease = "2017-07-20"
originalRelease = "2017-08-09"
if(finalRelease!=null && originalRelease!=null)  {
      var finalDate = finalRelease.split('-');
      var originalDate = originalRelease.split('-');
      var finalMonth = parseInt(finalDate[1])-1;
      var originalMonth = parseInt(originalDate[1])-1;

This seems to work as expected. Where are you getting the error? — Kamesh, Jul 21 '17 at 05:05
I ran it in my browser console, It gives me answer as 7. No issues. — Kamesh, Jul 21 '17 at 05:07
for final month it is showing correct 7 but for original Month it is showing NaN — Saurabh Garg, Jul 21 '17 at 05:09
I'm not familiar with `google-apps-script` but I think you should use console.log to log the value `originalDate` to check if it is in a correct format — huydq5000, Jul 21 '17 at 05:19
I used that and it is showing NaN for originalMonth value while finalMonth value is coming correct — Saurabh Garg, Jul 21 '17 at 05:32
Your code could be simplified to one line: `Logger.log(parseInt("08"));` Please read about [mcve] — , Jul 21 '17 at 06:22

score 3 · Accepted Answer · answered Jul 21 '17 at 06:25

Indeed, parseInt("08") returns NaN in Google Apps Script. This is because GAS, as old versions of JavaScript, consider the leading 0 as a sign of octal integer. The remedy is simple:

Always include the radix (usually 10) with parseInt.

Use:

parseInt("08", 10): 
parseInt(originalDate[1], 10) - 1;

Do not use:

parseInt("08"): 
parseInt(originalDate[1]) - 1;

Kos · Answer 2 · 2018-01-15T15:48:56.207

0

Here is another shorter method using Number constructor:

var num = Number("08"); // 8.0

edited Jan 15 '18 at 15:48

answered Jul 21 '17 at 10:16

Kos

4,890
9
38
42

Getting NaN error while using parseInt function

2 Answers2