The solution of a long decimal point when adding and subtracting JS small number

1. Questions:

This happens in the usual code, and the result of parsefloat (11.3-10.1) operation is still 1.200000000000001.

code example:

var arr = [0.0111,11.002,0.3,1.5,1.61var 0 = ={     + + Item   })   Console.log (total)    

The result of the return---14.423100000000002, which is illogical.

2. Solution:

Here's a practical workaround for some floating-point application functions in math such as: parsefloat () and Math.floor ()

The code is as follows:

var arr = [0.0111,11.002,0.3,1.5,1.61var 0 = ={        = parsefloat (item    )}    )= Math.floor (total* 100       )/    console.log (total)

The returned result---14.42, which returns a number with a two-digit decimal point.

Of course there are other solutions, this article only records this one, as a summary and later reference.

The solution of a long decimal point when adding and subtracting JS small number