NaN ? What is it exactly?

Question

long term for this
what cause NaN
what cause infinite as result

Answer 1

NaN stands for "not a number".

Answer 2

useful thread here on Boolean aspects of NaN.

https://github.com/FreeCodeCamp/FreeCodeCamp/issues/7045

in my opinion it's important to understand null, zero, and NaN

Answer 3

No lessons on SL that I know of. But you can try using a search engine.

Answer 4

which lessons should i check for th on js

Answer 5

https://www.sololearn.com/discuss/339049/?ref=app

Answer 6

Not a Number - sometimes useful