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java script rounding to nearest 10

New Here ,
Dec 14, 2020 Dec 14, 2020

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I have a form that needs to multiply two fields and then raound the answer to the nearest ten.

Below is what I have, can someone please tell me what I am missing

 

function DoubleRound(nDec, nValue) {
// Rounding function - round nValue to nDec decimal places
// use a double round to eliminate rounding error or Math.round
var nRound = Math.round(nValue / Math.pow(10, -nDec + 1)) * Math.pow(10, -nDec + 1)
return Math.round(nValue / Math.pow(10, -nDec)) * Math.pow(10, -nDec);
}

var u1= this.getField("TAXABLEVALUEOTHERPROPERTY").value;
var a1 = this.getField("RATIOOTHERPROPERTY").value;
event.value = ""; // default result if no divisor
if(Number(TAXABLEVALUEOTHERPROPERTY) != 0) {
// divisor not zero
var nResult = TAXABLEVALUEOTHERPROPERTY * RATIOOTHERPROPERTY; // compute division
nResult = DoubleRound(-1, nResult); // round to nearest 10
}

TOPICS
Comment markup and annotate , General troubleshooting , How to , PDF and browsers , PDF forms , Share or review PDFs , Windows

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Community Expert ,
Dec 14, 2020 Dec 14, 2020

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I wrote a generic function that does it:

 

// mode 0 = round v to nearest multiple of x, 1 = round down, 2 = round up
function roundToNearestX(v, x, mode) {
	var mod = v%x;
	if ((mod>=(x/2) && mode==0) || mode==2) return v+(x-mod);
	if ((mod<(x/2) && mode==0) || mode==1) return v-mod;
}

 

For example: Calling roundToNearestX(16, 10, 0) will return 20.

 

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