6 examples of 'allow only two digits after decimal using javascript' in JavaScript

311
function convertDecimal(value, surroundDecimalsWith) {
312
    if (/^-?([0]|([1-9][0-9]*))(\.[0-9]+)?$/.test(value) == false) {
313
        throw new Error("value supposed to be a decimal number but got: " + value);
314
    }
315
    if (surroundDecimalsWith) {
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        return {
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            value: value,
318
            toJSON: function () {
319
                return surroundDecimalsWith.str + value + surroundDecimalsWith.str;
320
            }
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        };
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    }
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    else {
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        return value;
325
    }
326
}

7
export default function formatDecimal (value: string): string {
8
  // We can do this by adjusting the regx, however for the sake of clarity
9
  // we rather strip and re-add the negative sign in the output
10
  const isNegative = value[0].startsWith('-');
11
  const matched = isNegative
12
    ? value.substr(1).match(NUMBER_REGEX)
13
    : value.match(NUMBER_REGEX);
14
15
  return matched
16
    ? `${isNegative ? '-' : ''}${matched.join(',')}`
17
    : value;
18
}

81
static parse(value) {
82
  return value;
83
}

115
function formatDecimal(valueAsNumber) {
116
   if (!hasDecimalPlaces(valueAsNumber)) {
117
      return Math.round(valueAsNumber).toString();
118
   } 
119
   let text = valueAsNumber.toFixed(1);
120
   return text.endsWith('.0') ? Math.round(valueAsNumber).toString() : text;
121
}

8
function getDecimal(format: Format) {
9
  switch (format) {
10
    case 'tz':
11
      return TZ_DECIMALS;
12
    case 'mtz':
13
      return MTZ_DECIMALS;
14
    case 'mutez':
15
    default:
16
      return 0;
17
  }
18
}

119
function getDigits() {
120
  return DG.PlotUtilities.findFractionDigitsForRange(iAttrDesc.getPath('attributeStats.minMax'));
121
}