10 examples of 'js round to 2 decimals' in JavaScript

277
function round_decimals(original_number, decimals) {
278
    var result1 = original_number * Math.pow(10, decimals)
279
    var result2 = Math.round(result1)
280
    var result3 = result2 / Math.pow(10, decimals)
281
    return pad_with_zeros(result3, decimals)
282
}

59
function round(value, decimals) {
60
	return Number(Math.round(value + 'e' + decimals) + 'e-' + decimals);
61
}

1
export function round(value: any, decimals: any) {
2
	if (!decimals) decimals = 0;
3
	return Number(Math.round(Number(value + 'e' + decimals)) + 'e-' + decimals);
4
}

157
static round(value, decimals) {
158
  return Number(`${Math.round(`${value}e${decimals}`)}e-${decimals}`)
159
}

11
function roundOne(decimalNumber) {
12
  return roundTo(decimalNumber, 1);
13
}

1694
function precisionRound(number, precision) {
1695
   var factor = Math.pow(10, precision);
1696
   return Math.round(number * factor) / factor;
1697
}

36
function roundNumber(num, decimals) {
37
    num = num || 0;
38
    if (typeof num === 'number') {
39
        return parseFloat(num.toFixed(decimals));
40
    } else {
41
        return roundArray(num, decimals);
42
    }
43
}

118
export function round1(num: number) {
119
    if (+num.toPrecision(4) === (num | 0)) return num;
120
    else return num.toPrecision(4);
121
}

186
function round(val, precision, method) {
187
  var fn = math[method || 'round'];
188
  var multiplier = math.pow(10, math.abs(precision || 0));
189
  if(precision < 0) multiplier = 1 / multiplier;
190
  return fn(val * multiplier) / multiplier;
191
}

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) {
316
        return {
317
            value: value,
318
            toJSON: function () {
319
                return surroundDecimalsWith.str + value + surroundDecimalsWith.str;
320
            }
321
        };
322
    }
323
    else {
324
        return value;
325
    }
326
}