Trim trailing zeros in mask. Fixes #18

Author: Mottie

src/format.js

@@ -55,12 +55,11 @@ function processValue(value, maskObj, options) {
 	// Fix the decimal first, toFixed will auto fill trailing zero.
 	valObj.value = Number(valObj.value).toFixed(maskObj.fraction && maskObj.fraction.length);
 	// Convert number to string to trim off *all* trailing decimal zero(es)
-	valObj.value = valObj.value.toString();
+	valObj.value = Number(valObj.value).toString();
 
 	// Fill back any trailing zero according to format
 	// look for last zero in format
 	const posTrailZero = maskObj.fraction && maskObj.fraction.lastIndexOf("0");
-
 	let [valInteger = "0", valFraction = ""] = valObj.value.split(".");
 	if (!valFraction || (valFraction && valFraction.length <= posTrailZero)) {
 		valFraction = (Number("0." + valFraction).toFixed(posTrailZero + 1)).replace("0.", "");

test/test.js

@@ -57,6 +57,12 @@ test("Precision", t => {
 	t.is(format("##,000.", 123456789.987654321), "123,456,790");
 	t.is(format("###,####.", 123456789.187654321), "1,2345,6789");
 	t.is(format("#'###'#00,", 123456789.087654321), "123'456'789");
+	t.is(format("#,##0.####", 1234567.890), "1,234,567.89");
+	t.is(format("#,##0.###0", 1234567.890), "1,234,567.8900");
+	t.is(format("#,##0.##0#", 1234567.890), "1,234,567.890");
+	t.is(format("#,##0.#0##", 1234567.890), "1,234,567.89");
+	t.is(format("#,##0.#", 1234567.890), "1,234,567.9");
+	t.is(format("#,###.", 1234567.890), "1,234,568");
 });
 
 /* Mask with prefix and/or suffix */