Join the Teckiy Community
Sign up for Free !!
World's first open source developer community with
Ticketing System
0.1 + 0.2 === 0.3 // => ???
First, let’s look at the value of 0.1 + 0.2:
0.1 + 0.2; // => 0.30000000000000004
The sum of 0.1 and 0.2 numbers is not exactly 0.3, but slightly above 0.3.
Due to how floating point numbers are encoded in binary, operations like addition of floating point numbers are subject to rounding errors.
Simply put, comparing floats directly is not precise.
Thus 0.1 + 0.2 === 0.3 is false.