@feugene/mu/dist/esm/to/toNumber.mjs

Helpful TS utilities without dependencies

import isObject from '../is/isObject.mjs';
import isSymbol from '../is/isSymbol.mjs';
import { reIsBadHex, reIsBinary, reIsOctal, reTrim } from '../core/vars.mjs';
/**
 * Converts `value` to a number.

 * @example
 *
 * toNumber(3.2);
 * // => 3.2
 *
 * toNumber(Number.MIN_VALUE);
 * // => 5e-324
 *
 * toNumber(Infinity);
 * // => Infinity
 *
 * toNumber('3.2');
 * // => 3.2
 */
export default function toNumber(value) {
    if (typeof value === 'number') {
        return value;
    }
    if (isSymbol(value)) {
        return NaN;
    }
    if (isObject(value)) {
        const other = typeof value.valueOf === 'function' ? value.valueOf() : value;
        value = isObject(other) ? other + '' : other;
    }
    if (typeof value !== 'string') {
        return value === 0 ? value : +value;
    }
    return stringToNumber(value);
}
export function stringToNumber(value) {
    value = value.replace(reTrim, '');
    const isBinary = reIsBinary.test(value);
    return isBinary || reIsOctal.test(value)
        ? parseInt(value.slice(2), isBinary ? 2 : 8)
        : reIsBadHex.test(value)
            ? NaN
            : +value;
}
export function booleanToNumber(value) {
    return +value;
}
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