Solution instructions for floating point operation BUG in js_javascript skills

I have used it in previous projects. I found this code on the Internet before, but under certain conditions, division and addition operations will still cause bugs. I personally optimized this a little

Copy code The code is as follows:

//Division function, used to get accurate division results
//Explanation: There will be errors in the division results of JavaScript , which will be more obvious when dividing two floating point numbers. This function returns a more accurate division result.
//Call: accDiv(arg1, arg2)
//Return value: the exact result of dividing arg1 by arg2
function accDiv(arg1, arg2) {
var t1 = 0, t2 = 0 , r1, r2;
try { t1 = arg1.toString().split(".")[1].length } catch (e) { }
try { t2 = arg2.toString().split (".")[1].length } catch (e) { }
with (Math) {
r1 = Number(arg1.toString().replace(".", ""))
       r2 = Number(arg2.toString().replace(".", ""))
          return accMul((r1 / r2),pow(10, t2 - t1));
   }
}

Copy code The code is as follows:

//Multiplication function, Used to get accurate multiplication results
//Explanation: The multiplication result of JavaScript will have errors, which will be more obvious when two floating point numbers are multiplied. This function returns a more accurate multiplication result.
//Call: accMul(arg1, arg2)
//Return value: the exact result of multiplying arg1 by arg2
function accMul(arg1, arg2) {
var m = 0, s1 = arg1 .toString(), s2 = arg2.toString();
try { m = s1.split(".")[1].length } catch (e) { }
try { m = s2.split (".")[1].length } catch (e) { }
return Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m)
}

Copy code The code is as follows:

//Intermediate solution to addition operation
function accAdd(arg1, arg2) {
var r1, r2, m, c;
try { r1 = arg1.toString(). split(".")[1].length } catch (e) { r1 = 0 }
try { r2 = arg2.toString().split(".")[1].length } catch (e) { r2 = 0 }
c = Math.abs(r1 - r2);
m = Math.pow(10, Math.max(r1, r2))
if (c > 0) {
var cm = Math.pow(10, c);
if (r1 > r2) {
arg1 = Number(arg1.toString().replace(".", ""));
arg2 = Number(arg2.toString().replace(".", "")) * cm;
} }
else {
arg1 = Number(arg1.toString().replace() ".", "")) * cm;
arg2 = Number(arg2.toString().replace(".", ""));
} }
else { > arg1 = Number(arg1.toString().replace(".", ""));
arg2 = Number(arg2.toString().replace(".", ""));
}
return accDiv((arg1 arg2),m);
}