i18n-js
Version:
A small library to provide I18n on JavaScript.
55 lines • 2.34 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.numberToHumanSize = void 0;
const bignumber_js_1 = __importDefault(require("bignumber.js"));
const roundNumber_1 = require("./roundNumber");
const expandRoundMode_1 = require("./expandRoundMode");
const STORAGE_UNITS = ["byte", "kb", "mb", "gb", "tb", "pb", "eb"];
function numberToHumanSize(i18n, input, options) {
const roundMode = (0, expandRoundMode_1.expandRoundMode)(options.roundMode);
const base = 1024;
const num = new bignumber_js_1.default(input).abs();
const smallerThanBase = num.lt(base);
let numberToBeFormatted;
const computeExponent = (numeric, units) => {
const max = units.length - 1;
const exp = new bignumber_js_1.default(Math.log(numeric.toNumber()))
.div(Math.log(base))
.integerValue(bignumber_js_1.default.ROUND_DOWN)
.toNumber();
return Math.min(max, exp);
};
const storageUnitKey = (units) => {
const keyEnd = smallerThanBase ? "byte" : units[exponent];
return `number.human.storage_units.units.${keyEnd}`;
};
const exponent = computeExponent(num, STORAGE_UNITS);
if (smallerThanBase) {
numberToBeFormatted = num.integerValue();
}
else {
numberToBeFormatted = new bignumber_js_1.default((0, roundNumber_1.roundNumber)(num.div(Math.pow(base, exponent)), {
significant: options.significant,
precision: options.precision,
roundMode: options.roundMode,
}));
}
const format = i18n.translate("number.human.storage_units.format", {
defaultValue: "%n %u",
});
const unit = i18n.translate(storageUnitKey(STORAGE_UNITS), {
count: num.integerValue().toNumber(),
});
let formattedNumber = numberToBeFormatted.toFixed(options.precision, roundMode);
if (options.stripInsignificantZeros) {
formattedNumber = formattedNumber
.replace(/(\..*?)0+$/, "$1")
.replace(/\.$/, "");
}
return format.replace("%n", formattedNumber).replace("%u", unit);
}
exports.numberToHumanSize = numberToHumanSize;
//# sourceMappingURL=numberToHumanSize.js.map