@sjsf-lab/shadcn-extras-theme/dist/utils/is-number.js

The shadcn-svelte-extras based theme for svelte-jsonschema-form

/*
    Installed from @ieedan/std
*/
/** Checks if provided value is actually a number.
 *
 * @param num value to check
 * @returns
 *
 * ## Usage
 *
 * ```ts
 * isNumber("2"); // true
 * isNumber("1.11"); // true
 * isNumber("0xff"); // true
 *
 * isNumber("two"); // false
 * isNumber({ two: 2 }); // false
 * isNumber(Number.POSITIVE_INFINITY); // false
 * ```
 */
export function isNumber(num) {
    if (typeof num === 'number')
        return num - num === 0;
    if (typeof num === 'string' && num.trim() !== '')
        return Number.isFinite(+num);
    return false;
}