Precision Back

• JavaScrpit numbers also have the same problem of c++, and can approximate 0.1 very closely. But the fact that this number cannot be represented exactly can lead to problems.

var x = .3 - .2;
var y = .2 - .1;
x == y;        //false: the two values are not the same!
x == 0.1;    //false
y == 0.1;    //true