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JavaScript JavaScript Basics (Retired) Working With Numbers Review Numbers and the Math Object

Posted by Brigitt Arndt
Brigitt Arndt
9,498 Points

What will appear in the JavaScript console after this code runs? console.log( parseInt( '.5 FTE' ));

What will appear in the JavaScript console after this code runs? console.log( parseInt( '.5 FTE' ));

2 Answers

Gary Calhoun
Gary Calhoun
10,317 Points
Gary Calhoun
Gary Calhoun
10,317 Points

Hi you can test that out yourself in google chrome ctrl+shift+j will open then console type it in and press enter to get your answer.

Jason Anders
MOD
Jason Anders
Treehouse Moderator 145,858 Points
Jason Anders
Jason Anders
Treehouse Moderator 145,858 Points

Hi Brigitt, That code will return NaN. Why? It is because of the parseInt() method being called on ".5 FTE." The method looks at its argument and because there is a mix of numbers, symbols, and letter, it will look only at the first character. In this example, the first character is a period and therefore not a number (NaN).

Hope that makes sense. Keep Coding! :)