Programming Questions
Dividing num2 by num1 can't get four decimal points
Am I on the right track here? I can get it to work except I can't seem to make it always output with four decimal places. This is the questions:
"Using the JavaScript language, have the function FormattedDivision(num1,num2) take both parameters being passed, divide num1 by num2, and return the result as a string with properly formatted commas and 4 significant digits after the decimal place. For example: if num1 is 123456789 and num2 is 10000 the output should be "12,345.6789". The output must contain a number in the one's place even if it is a zero. "
function FormattedDivision(num1,num2) {
var num3 = num1/num2;
num3 = num3.toFixed(4);
num3 = parseFloat(num3);
return num3;
}
atmosphere312
posted this question on 1/28/14 |
Answers
3
You'll be wanting to parse it as a string, no a floating point. So .toFixed() is the right start but you'll also need to use.toString() and add in some logic for the commas.
vagon
answered on 01/29/14
2
In JavaScript, an easy way to get arbitrary number of decimal points is to scale the number up first, then do your rounding, then divide scale out again.
var num3 = num1/num2;
var num3 = Math.round(num3 * 10000) / 10000
DanielBank
answered on 01/30/14
1
As a string split it at the . and then use string manipulation
mahopa
answered on 02/09/14
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