How to Use IEEE Standard for binary floating point operations in JavaScript to generate inexplicable errors _ javascript skills

When javascript performs a decimal computation, there will be a cycle of 9. The following methods help solve the problem. When javascript performs a decimal computation, there will be a cycle of 9. The following methods help solve the problem.

The first parameter is the value to be processed, and the second parameter is the number of decimal places to be retained. This is the case in your project ~

The Code is as follows:

Function round (v, e ){
Var t = 1;
For (; e> 0; t * = 10, e --);
For (; e <0; t/= 10, e ++ );
Return Math. round (v * t)/t;
}