@formatjs/ecma402-abstract/lib/NumberFormat/FormatNumericToString.js

A collection of implementation for ECMAScript abstract operations

import { SameValue } from '../262';
import { ToRawPrecision } from './ToRawPrecision';
import { repeat } from '../utils';
import { ToRawFixed } from './ToRawFixed';
/**
 * https://tc39.es/ecma402/#sec-formatnumberstring
 */
export function FormatNumericToString(intlObject, x) {
    var isNegative = x < 0 || SameValue(x, -0);
    if (isNegative) {
        x = -x;
    }
    var result;
    var rourndingType = intlObject.roundingType;
    switch (rourndingType) {
        case 'significantDigits':
            result = ToRawPrecision(x, intlObject.minimumSignificantDigits, intlObject.maximumSignificantDigits);
            break;
        case 'fractionDigits':
            result = ToRawFixed(x, intlObject.minimumFractionDigits, intlObject.maximumFractionDigits);
            break;
        default:
            result = ToRawPrecision(x, 1, 2);
            if (result.integerDigitsCount > 1) {
                result = ToRawFixed(x, 0, 0);
            }
            break;
    }
    x = result.roundedNumber;
    var string = result.formattedString;
    var int = result.integerDigitsCount;
    var minInteger = intlObject.minimumIntegerDigits;
    if (int < minInteger) {
        var forwardZeros = repeat('0', minInteger - int);
        string = forwardZeros + string;
    }
    if (isNegative) {
        x = -x;
    }
    return { roundedNumber: x, formattedString: string };
}