in javascript, if condtion is returng false?

Question

below is the code,

if(3.0+0.1 == 3.1){
return true;
}
else{
return false;
}

Can anyone tell me why it is returning false.

Answer 1

This is because 3.0+1 makes the following equation: 3.0 + 1.0 === 3.1
which isn't true try 3.0 + 0.1 === 3.1 or a more safer option (due to how floats work)
(30 + 1) / 10 === 3.1