50 lines
1.9 KiB
JavaScript
50 lines
1.9 KiB
JavaScript
/* eslint-disable max-classes-per-file */
|
|
|
|
import BigIntDecimal from "./BigIntDecimal";
|
|
import NumberDecimal from "./NumberDecimal";
|
|
import { trimNumber } from "./numberUtil";
|
|
import { supportBigInt } from "./supportUtil";
|
|
|
|
// Still support origin export
|
|
export { NumberDecimal, BigIntDecimal };
|
|
export default function getMiniDecimal(value) {
|
|
// We use BigInt here.
|
|
// Will fallback to Number if not support.
|
|
if (supportBigInt()) {
|
|
return new BigIntDecimal(value);
|
|
}
|
|
return new NumberDecimal(value);
|
|
}
|
|
|
|
/**
|
|
* Align the logic of toFixed to around like 1.5 => 2.
|
|
* If set `cutOnly`, will just remove the over decimal part.
|
|
*/
|
|
export function toFixed(numStr, separatorStr, precision) {
|
|
var cutOnly = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
|
|
if (numStr === '') {
|
|
return '';
|
|
}
|
|
var _trimNumber = trimNumber(numStr),
|
|
negativeStr = _trimNumber.negativeStr,
|
|
integerStr = _trimNumber.integerStr,
|
|
decimalStr = _trimNumber.decimalStr;
|
|
var precisionDecimalStr = "".concat(separatorStr).concat(decimalStr);
|
|
var numberWithoutDecimal = "".concat(negativeStr).concat(integerStr);
|
|
if (precision >= 0) {
|
|
// We will get last + 1 number to check if need advanced number
|
|
var advancedNum = Number(decimalStr[precision]);
|
|
if (advancedNum >= 5 && !cutOnly) {
|
|
var advancedDecimal = getMiniDecimal(numStr).add("".concat(negativeStr, "0.").concat('0'.repeat(precision)).concat(10 - advancedNum));
|
|
return toFixed(advancedDecimal.toString(), separatorStr, precision, cutOnly);
|
|
}
|
|
if (precision === 0) {
|
|
return numberWithoutDecimal;
|
|
}
|
|
return "".concat(numberWithoutDecimal).concat(separatorStr).concat(decimalStr.padEnd(precision, '0').slice(0, precision));
|
|
}
|
|
if (precisionDecimalStr === '.0') {
|
|
return numberWithoutDecimal;
|
|
}
|
|
return "".concat(numberWithoutDecimal).concat(precisionDecimalStr);
|
|
} |