# Subtraction of JS Control precision

Source: Internet
Author: User
Tags mul pow

`//addition function        functionAccadd (arg1, arg2) {varR1, R2, M; Try{R1= Arg1.tostring (). Split (".") [1].length; }            Catch(e) {R1= 0; }            Try{R2= Arg2.tostring (). Split (".") [1].length; }            Catch(e) {R2= 0; } m= Math.pow (10, Math.max (R1, r2)); return(ARG1 * m + arg2 * m)/m; }        //Add an Add method to the number type, which is used directly with. Add to complete the calculation. Number.prototype.add =function(ARG) {returnAccadd (ARG, This);        }; //Subtraction Function        functionsubtr (arg1, arg2) {varR1, R2, M, N; Try{R1= Arg1.tostring (). Split (".") [1].length; }            Catch(e) {R1= 0; }            Try{R2= Arg2.tostring (). Split (".") [1].length; }            Catch(e) {R2= 0; } m= Math.pow (10, Math.max (R1, r2)); //Last modify by Deeka            //Dynamic Control accuracy lengthn = (r1 >= r2)?R1:R2; return((ARG1 * M-ARG2 * m)/m). toFixed (n); }        //add an Add method to the number type, and use the. Sub directly to complete the calculation. Number.prototype.sub =function(ARG) {returnSUBTR ( This, ARG);        }; //multiplication Function        functionAccmul (arg1, arg2) {varm = 0, S1 = arg1.tostring (), S2 =arg2.tostring (); Try{m+ = S1.split (".") [1].length; }            Catch(e) {}Try{m+ = S2.split (".") [1].length; }            Catch(e) {}returnNumber (S1.replace (".", "")) * Number (S2.replace (".", ""))/Math.pow (10, M); }        //Add a Mul method to the number type and use it directly with the. Mul to complete the calculation. Number.prototype.mul =function(ARG) {returnAccmul (ARG, This);        }; //Division function        functionAccdiv (arg1, arg2) {varT1 = 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(R1/R2) * POW (T2-t1); }        }        //Add a div method to the number type, and use the. Div directly to complete the calculation. Number.prototype.div =function(ARG) {returnAccdiv ( This, ARG);        }; functionsetnumandweight (num, weight, index, obj) {\$ (obj). Parent (). Next ("TD"). Text (Getfloatbynum (weight, 4)); varHTML = "Number of pieces:" + num + "<br>" + "Weight:" + getfloatbynum (weight, 4); \$("tr.tr-" + Index). Children (). EQ (4). HTML (HTML); }        //the mandatory system retains 4 decimal places, and the 5th place goes directly. such as: 2, will be 2 after the 00. That is, 2.00        functionToDecimal4 (x) {varf =parsefloat (x); if(IsNaN (f)) {return false; }            varf = Math.floor (x * 10000)/10000; vars =f.tostring (); varrs = S.indexof ('. ')); if(Rs < 0) {RS=s.length; S+ = '. '; }             while(s.length <= RS + 4) {s+ = ' 0 '; }            returns; }`

Call, directly with:

`Weight = parsefloat (perweight). Mul (parseint (num). Add (Onboardnum)). Sub (onboardweight);`

Subtraction of JS Control precision

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