polish-validators/dist/esm/imei.js

A set of validator functions that check common polish numbers.

import { removeDashesSlashesAndWhitespace } from './_utils';
const IMEI_REGEX = /^\d{15}$/;
/**
 * Validates an IMEI (International Mobile Equipment Identity) number, using the Luhn algorithm.
 * Checks that the IMEI is 15 digits. Any dashes, slashes, or whitespace are ignored.
 *
 * @param {string} imei - The 15-digit IMEI number as a string.
 * @returns {boolean} `true` if the IMEI is valid; `false` otherwise.
 */
export function isImeiValid(imei) {
    imei = removeDashesSlashesAndWhitespace(imei);
    if (!IMEI_REGEX.test(imei)) {
        return false;
    }
    let checkSum = 0;
    let digits = '';
    let v = 0;
    for (let i = 0; i < imei.length; i++) {
        v = parseInt(imei[i]);
        if (i % 2 !== 0) {
            v *= 2;
        }
        digits += v.toString();
    }
    for (let i = 0; i < digits.length; i++) {
        checkSum += parseInt(digits[i]);
    }
    return (checkSum %= 10) === 0;
}
/**
 * Validates an IMEI (International Mobile Equipment Identity) number, using the Luhn algorithm.
 * Checks that the IMEI is 15 digits. Any dashes, slashes, or whitespace are ignored.
 *
 * @param {string} imei - The 15-digit IMEI number as a string.
 * @returns {boolean} `true` if the IMEI is invalid; `false` otherwise.
 */
export const isImeiInvalid = (imei) => !isImeiValid(imei);