fluxer/packages/number_utils/src/NumberParsing.tsx
2026-02-17 12:22:36 +00:00

45 lines
1.4 KiB
TypeScript

/*
* Copyright (C) 2026 Fluxer Contributors
*
* This file is part of Fluxer.
*
* Fluxer is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Fluxer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
*/
import {DEFAULT_NUMBER_FALLBACK} from '@fluxer/number_utils/src/NumberConstants';
import type {NumberInput} from '@fluxer/number_utils/src/NumberTypes';
export function parseNumberInput(value: NumberInput, fallbackValue: number = DEFAULT_NUMBER_FALLBACK): number {
if (typeof value === 'number') {
if (Number.isFinite(value)) {
return value;
}
return fallbackValue;
}
if (typeof value === 'string') {
const trimmedValue = value.trim();
if (trimmedValue === '') {
return fallbackValue;
}
const parsedValue = Number(trimmedValue);
if (Number.isFinite(parsedValue)) {
return parsedValue;
}
}
return fallbackValue;
}