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showing results for - "check if var is nan"
Liam
24 Jul 2017
1function isNaN(x) {
2   return x !== x;
3};
4isNaN(NaN);//true
Damián
18 Sep 2018
1let b=1
2let n=readline()
3if(isNaN(b)){
4  console.log("You typed 0!")
5}else{
6  console.log("You did not type 0!")
7}
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