@beenotung/tslib/tel/utils.js

utils library in Typescript

"use strict";
/** *****************
 * helper functions *
 ********************/
Object.defineProperty(exports, "__esModule", { value: true });
exports.format_tel_with_pattern = format_tel_with_pattern;
exports.to_tel_digits = to_tel_digits;
/**
 * helper function to format tel with pattern
 */
function format_tel_with_pattern(tel, pattern) {
    tel = to_tel_digits(tel);
    if (!tel)
        return tel;
    const expectedLength = pattern.replaceAll(' ', '').length;
    if (tel.length != expectedLength) {
        throw new Error(`invalid length, expect length ${expectedLength} but got length ${tel.length}`);
    }
    let offset = 0;
    return pattern
        .split(' ')
        .map(pattern => {
        const length = pattern.length;
        const part = tel.slice(offset, offset + length);
        offset += length;
        return part;
    })
        .join(' ');
}
/**
 * remove space, hyphen, bracket, etc.
 *
 * preserve only digits and +
 */
function to_tel_digits(tel) {
    if (typeof tel === 'number') {
        tel = tel.toString();
    }
    return tel
        .split('')
        .filter(x => x == '+' || ('0' <= x && x <= '9'))
        .join('');
}
// export type TelRegion = {
//   /** e.g. '+852' for Hong Kong */
//   region_code: string
//   /**
//    * check if the tel is mobile phone number in this region
//    * e.g. '+852xxxxyyyy' -> true
//    * */
//   is_mobile_phone_prefix: (tel: string) => boolean
//   /** helper function, calling `to_full_mobile_phone(tel) !== ''` */
//   is_mobile_phone: (tel: number | string) => boolean
//   /** return the full tel number with country code, or empty string if not valid */
//   to_full_mobile_phone: (tel: string | number) => string
//   /**
//    * return the formatted tel number with pattern if valid:
//    * e.g. '+852 xxxx yyyy' for Hong Kong
//    */
//   format_mobile_phone: (tel: string | number) => string
// }
// let tel_regions: TelRegion[] = []
// export function register_tel_region(args: Omit<TelRegion, 'is_mobile_phone'>) {
//   let region: TelRegion = {
//     ...args,
//     is_mobile_phone(tel: number | string): boolean {
//       return args.to_full_mobile_phone(tel) !== ''
//     },
//   }
//   tel_regions.push(region)
//   return region
// }