Comment puis-je déterminer le code du pays simplement en regardant le numéro

Donc, si le code du pays n'est pas fourni dans le numéro de téléphone, vous ne pouvez en aucun cas détecter le pays.

S'il est fourni, vous pouvez filtrer le pays à partir du JSON ci-dessous avec la fonction ci-dessous: p>

[{"name":"Israel","dial_code":"+972","code":"IL"},{"name":"Afghanistan","dial_code":"+93","code":"AF"},{"name":"Albania","dial_code":"+355","code":"AL"},{"name":"Algeria","dial_code":"+213","code":"DZ"},{"name":"AmericanSamoa","dial_code":"+1 684","code":"AS"},{"name":"Andorra","dial_code":"+376","code":"AD"},{"name":"Angola","dial_code":"+244","code":"AO"},{"name":"Anguilla","dial_code":"+1 264","code":"AI"},{"name":"Antigua and Barbuda","dial_code":"+1268","code":"AG"},{"name":"Argentina","dial_code":"+54","code":"AR"},{"name":"Armenia","dial_code":"+374","code":"AM"},{"name":"Aruba","dial_code":"+297","code":"AW"},{"name":"Australia","dial_code":"+61","code":"AU"},{"name":"Austria","dial_code":"+43","code":"AT"},{"name":"Azerbaijan","dial_code":"+994","code":"AZ"},{"name":"Bahamas","dial_code":"+1 242","code":"BS"},{"name":"Bahrain","dial_code":"+973","code":"BH"},{"name":"Bangladesh","dial_code":"+880","code":"BD"},{"name":"Barbados","dial_code":"+1 246","code":"BB"},{"name":"Belarus","dial_code":"+375","code":"BY"},{"name":"Belgium","dial_code":"+32","code":"BE"},{"name":"Belize","dial_code":"+501","code":"BZ"},{"name":"Benin","dial_code":"+229","code":"BJ"},{"name":"Bermuda","dial_code":"+1 441","code":"BM"},{"name":"Bhutan","dial_code":"+975","code":"BT"},{"name":"Bosnia and Herzegovina","dial_code":"+387","code":"BA"},{"name":"Botswana","dial_code":"+267","code":"BW"},{"name":"Brazil","dial_code":"+55","code":"BR"},{"name":"British Indian Ocean Territory","dial_code":"+246","code":"IO"},{"name":"Bulgaria","dial_code":"+359","code":"BG"},{"name":"Burkina Faso","dial_code":"+226","code":"BF"},{"name":"Burundi","dial_code":"+257","code":"BI"},{"name":"Cambodia","dial_code":"+855","code":"KH"},{"name":"Cameroon","dial_code":"+237","code":"CM"},{"name":"Canada","dial_code":"+1","code":"CA"},{"name":"Cape Verde","dial_code":"+238","code":"CV"},{"name":"Cayman Islands","dial_code":"+ 345","code":"KY"},{"name":"Central African Republic","dial_code":"+236","code":"CF"},{"name":"Chad","dial_code":"+235","code":"TD"},{"name":"Chile","dial_code":"+56","code":"CL"},{"name":"China","dial_code":"+86","code":"CN"},{"name":"Christmas Island","dial_code":"+61","code":"CX"},{"name":"Colombia","dial_code":"+57","code":"CO"},{"name":"Comoros","dial_code":"+269","code":"KM"},{"name":"Congo","dial_code":"+242","code":"CG"},{"name":"Cook Islands","dial_code":"+682","code":"CK"},{"name":"Costa Rica","dial_code":"+506","code":"CR"},{"name":"Croatia","dial_code":"+385","code":"HR"},{"name":"Cuba","dial_code":"+53","code":"CU"},{"name":"Cyprus","dial_code":"+537","code":"CY"},{"name":"Czech Republic","dial_code":"+420","code":"CZ"},{"name":"Denmark","dial_code":"+45","code":"DK"},{"name":"Djibouti","dial_code":"+253","code":"DJ"},{"name":"Dominica","dial_code":"+1 767","code":"DM"},{"name":"Dominican Republic","dial_code":"+1 849","code":"DO"},{"name":"Ecuador","dial_code":"+593","code":"EC"},{"name":"Egypt","dial_code":"+20","code":"EG"},{"name":"El Salvador","dial_code":"+503","code":"SV"},{"name":"Equatorial Guinea","dial_code":"+240","code":"GQ"},{"name":"Eritrea","dial_code":"+291","code":"ER"},{"name":"Estonia","dial_code":"+372","code":"EE"},{"name":"Ethiopia","dial_code":"+251","code":"ET"},{"name":"Faroe Islands","dial_code":"+298","code":"FO"},{"name":"Fiji","dial_code":"+679","code":"FJ"},{"name":"Finland","dial_code":"+358","code":"FI"},{"name":"France","dial_code":"+33","code":"FR"},{"name":"French Guiana","dial_code":"+594","code":"GF"},{"name":"French Polynesia","dial_code":"+689","code":"PF"},{"name":"Gabon","dial_code":"+241","code":"GA"},{"name":"Gambia","dial_code":"+220","code":"GM"},{"name":"Georgia","dial_code":"+995","code":"GE"},{"name":"Germany","dial_code":"+49","code":"DE"},{"name":"Ghana","dial_code":"+233","code":"GH"},{"name":"Gibraltar","dial_code":"+350","code":"GI"},{"name":"Greece","dial_code":"+30","code":"GR"},{"name":"Greenland","dial_code":"+299","code":"GL"},{"name":"Grenada","dial_code":"+1 473","code":"GD"},{"name":"Guadeloupe","dial_code":"+590","code":"GP"},{"name":"Guam","dial_code":"+1 671","code":"GU"},{"name":"Guatemala","dial_code":"+502","code":"GT"},{"name":"Guinea","dial_code":"+224","code":"GN"},{"name":"Guinea-Bissau","dial_code":"+245","code":"GW"},{"name":"Guyana","dial_code":"+595","code":"GY"},{"name":"Haiti","dial_code":"+509","code":"HT"},{"name":"Honduras","dial_code":"+504","code":"HN"},{"name":"Hungary","dial_code":"+36","code":"HU"},{"name":"Iceland","dial_code":"+354","code":"IS"},{"name":"India","dial_code":"+91","code":"IN"},{"name":"Indonesia","dial_code":"+62","code":"ID"},{"name":"Iraq","dial_code":"+964","code":"IQ"},{"name":"Ireland","dial_code":"+353","code":"IE"},{"name":"Israel","dial_code":"+972","code":"IL"},{"name":"Italy","dial_code":"+39","code":"IT"},{"name":"Jamaica","dial_code":"+1 876","code":"JM"},{"name":"Japan","dial_code":"+81","code":"JP"},{"name":"Jordan","dial_code":"+962","code":"JO"},{"name":"Kazakhstan","dial_code":"+7 7","code":"KZ"},{"name":"Kenya","dial_code":"+254","code":"KE"},{"name":"Kiribati","dial_code":"+686","code":"KI"},{"name":"Kuwait","dial_code":"+965","code":"KW"},{"name":"Kyrgyzstan","dial_code":"+996","code":"KG"},{"name":"Latvia","dial_code":"+371","code":"LV"},{"name":"Lebanon","dial_code":"+961","code":"LB"},{"name":"Lesotho","dial_code":"+266","code":"LS"},{"name":"Liberia","dial_code":"+231","code":"LR"},{"name":"Liechtenstein","dial_code":"+423","code":"LI"},{"name":"Lithuania","dial_code":"+370","code":"LT"},{"name":"Luxembourg","dial_code":"+352","code":"LU"},{"name":"Madagascar","dial_code":"+261","code":"MG"},{"name":"Malawi","dial_code":"+265","code":"MW"},{"name":"Malaysia","dial_code":"+60","code":"MY"},{"name":"Maldives","dial_code":"+960","code":"MV"},{"name":"Mali","dial_code":"+223","code":"ML"},{"name":"Malta","dial_code":"+356","code":"MT"},{"name":"Marshall Islands","dial_code":"+692","code":"MH"},{"name":"Martinique","dial_code":"+596","code":"MQ"},{"name":"Mauritania","dial_code":"+222","code":"MR"},{"name":"Mauritius","dial_code":"+230","code":"MU"},{"name":"Mayotte","dial_code":"+262","code":"YT"},{"name":"Mexico","dial_code":"+52","code":"MX"},{"name":"Monaco","dial_code":"+377","code":"MC"},{"name":"Mongolia","dial_code":"+976","code":"MN"},{"name":"Montenegro","dial_code":"+382","code":"ME"},{"name":"Montserrat","dial_code":"+1664","code":"MS"},{"name":"Morocco","dial_code":"+212","code":"MA"},{"name":"Myanmar","dial_code":"+95","code":"MM"},{"name":"Namibia","dial_code":"+264","code":"NA"},{"name":"Nauru","dial_code":"+674","code":"NR"},{"name":"Nepal","dial_code":"+977","code":"NP"},{"name":"Netherlands","dial_code":"+31","code":"NL"},{"name":"Netherlands Antilles","dial_code":"+599","code":"AN"},{"name":"New Caledonia","dial_code":"+687","code":"NC"},{"name":"New Zealand","dial_code":"+64","code":"NZ"},{"name":"Nicaragua","dial_code":"+505","code":"NI"},{"name":"Niger","dial_code":"+227","code":"NE"},{"name":"Nigeria","dial_code":"+234","code":"NG"},{"name":"Niue","dial_code":"+683","code":"NU"},{"name":"Norfolk Island","dial_code":"+672","code":"NF"},{"name":"Northern Mariana Islands","dial_code":"+1 670","code":"MP"},{"name":"Norway","dial_code":"+47","code":"NO"},{"name":"Oman","dial_code":"+968","code":"OM"},{"name":"Pakistan","dial_code":"+92","code":"PK"},{"name":"Palau","dial_code":"+680","code":"PW"},{"name":"Panama","dial_code":"+507","code":"PA"},{"name":"Papua New Guinea","dial_code":"+675","code":"PG"},{"name":"Paraguay","dial_code":"+595","code":"PY"},{"name":"Peru","dial_code":"+51","code":"PE"},{"name":"Philippines","dial_code":"+63","code":"PH"},{"name":"Poland","dial_code":"+48","code":"PL"},{"name":"Portugal","dial_code":"+351","code":"PT"},{"name":"Puerto Rico","dial_code":"+1 939","code":"PR"},{"name":"Qatar","dial_code":"+974","code":"QA"},{"name":"Romania","dial_code":"+40","code":"RO"},{"name":"Rwanda","dial_code":"+250","code":"RW"},{"name":"Samoa","dial_code":"+685","code":"WS"},{"name":"San Marino","dial_code":"+378","code":"SM"},{"name":"Saudi Arabia","dial_code":"+966","code":"SA"},{"name":"Senegal","dial_code":"+221","code":"SN"},{"name":"Serbia","dial_code":"+381","code":"RS"},{"name":"Seychelles","dial_code":"+248","code":"SC"},{"name":"Sierra Leone","dial_code":"+232","code":"SL"},{"name":"Singapore","dial_code":"+65","code":"SG"},{"name":"Slovakia","dial_code":"+421","code":"SK"},{"name":"Slovenia","dial_code":"+386","code":"SI"},{"name":"Solomon Islands","dial_code":"+677","code":"SB"},{"name":"South Africa","dial_code":"+27","code":"ZA"},{"name":"South Georgia and the South Sandwich Islands","dial_code":"+500","code":"GS"},{"name":"Spain","dial_code":"+34","code":"ES"},{"name":"Sri Lanka","dial_code":"+94","code":"LK"},{"name":"Sudan","dial_code":"+249","code":"SD"},{"name":"Suriname","dial_code":"+597","code":"SR"},{"name":"Swaziland","dial_code":"+268","code":"SZ"},{"name":"Sweden","dial_code":"+46","code":"SE"},{"name":"Switzerland","dial_code":"+41","code":"CH"},{"name":"Tajikistan","dial_code":"+992","code":"TJ"},{"name":"Thailand","dial_code":"+66","code":"TH"},{"name":"Togo","dial_code":"+228","code":"TG"},{"name":"Tokelau","dial_code":"+690","code":"TK"},{"name":"Tonga","dial_code":"+676","code":"TO"},{"name":"Trinidad and Tobago","dial_code":"+1 868","code":"TT"},{"name":"Tunisia","dial_code":"+216","code":"TN"},{"name":"Turkey","dial_code":"+90","code":"TR"},{"name":"Turkmenistan","dial_code":"+993","code":"TM"},{"name":"Turks and Caicos Islands","dial_code":"+1 649","code":"TC"},{"name":"Tuvalu","dial_code":"+688","code":"TV"},{"name":"Uganda","dial_code":"+256","code":"UG"},{"name":"Ukraine","dial_code":"+380","code":"UA"},{"name":"United Arab Emirates","dial_code":"+971","code":"AE"},{"name":"United Kingdom","dial_code":"+44","code":"GB"},{"name":"United States","dial_code":"+1","code":"US"},{"name":"Uruguay","dial_code":"+598","code":"UY"},{"name":"Uzbekistan","dial_code":"+998","code":"UZ"},{"name":"Vanuatu","dial_code":"+678","code":"VU"},{"name":"Wallis and Futuna","dial_code":"+681","code":"WF"},{"name":"Yemen","dial_code":"+967","code":"YE"},{"name":"Zambia","dial_code":"+260","code":"ZM"},{"name":"Zimbabwe","dial_code":"+263","code":"ZW"},{"name":"land Islands","dial_code":"","code":"AX"},{"name":"Antarctica","dial_code":null,"code":"AQ"},{"name":"Bolivia, Plurinational State of","dial_code":"+591","code":"BO"},{"name":"Brunei Darussalam","dial_code":"+673","code":"BN"},{"name":"Cocos (Keeling) Islands","dial_code":"+61","code":"CC"},{"name":"Congo, The Democratic Republic of the","dial_code":"+243","code":"CD"},{"name":"Cote d'Ivoire","dial_code":"+225","code":"CI"},{"name":"Falkland Islands (Malvinas)","dial_code":"+500","code":"FK"},{"name":"Guernsey","dial_code":"+44","code":"GG"},{"name":"Holy See (Vatican City State)","dial_code":"+379","code":"VA"},{"name":"Hong Kong","dial_code":"+852","code":"HK"},{"name":"Iran, Islamic Republic of","dial_code":"+98","code":"IR"},{"name":"Isle of Man","dial_code":"+44","code":"IM"},{"name":"Jersey","dial_code":"+44","code":"JE"},{"name":"Korea, Democratic People's Republic of","dial_code":"+850","code":"KP"},{"name":"Korea, Republic of","dial_code":"+82","code":"KR"},{"name":"Lao People's Democratic Republic","dial_code":"+856","code":"LA"},{"name":"Libyan Arab Jamahiriya","dial_code":"+218","code":"LY"},{"name":"Macao","dial_code":"+853","code":"MO"},{"name":"Macedonia, The Former Yugoslav Republic of","dial_code":"+389","code":"MK"},{"name":"Micronesia, Federated States of","dial_code":"+691","code":"FM"},{"name":"Moldova, Republic of","dial_code":"+373","code":"MD"},{"name":"Mozambique","dial_code":"+258","code":"MZ"},{"name":"Palestinian Territory, Occupied","dial_code":"+970","code":"PS"},{"name":"Pitcairn","dial_code":"+872","code":"PN"},{"name":"Réunion","dial_code":"+262","code":"RE"},{"name":"Russia","dial_code":"+7","code":"RU"},{"name":"Saint Barthélemy","dial_code":"+590","code":"BL"},{"name":"Saint Helena, Ascension and Tristan Da Cunha","dial_code":"+290","code":"SH"},{"name":"Saint Kitts and Nevis","dial_code":"+1 869","code":"KN"},{"name":"Saint Lucia","dial_code":"+1 758","code":"LC"},{"name":"Saint Martin","dial_code":"+590","code":"MF"},{"name":"Saint Pierre and Miquelon","dial_code":"+508","code":"PM"},{"name":"Saint Vincent and the Grenadines","dial_code":"+1 784","code":"VC"},{"name":"Sao Tome and Principe","dial_code":"+239","code":"ST"},{"name":"Somalia","dial_code":"+252","code":"SO"},{"name":"Svalbard and Jan Mayen","dial_code":"+47","code":"SJ"},{"name":"Syrian Arab Republic","dial_code":"+963","code":"SY"},{"name":"Taiwan, Province of China","dial_code":"+886","code":"TW"},{"name":"Tanzania, United Republic of","dial_code":"+255","code":"TZ"},{"name":"Timor-Leste","dial_code":"+670","code":"TL"},{"name":"Venezuela, Bolivarian Republic of","dial_code":"+58","code":"VE"},{"name":"Viet Nam","dial_code":"+84","code":"VN"},{"name":"Virgin Islands, British","dial_code":"+1 284","code":"VG"},{"name":"Virgin Islands, U.S.","dial_code":"+1 340","code":"VI"}]

JSON

const countries = JSONContent; // as below

function findCountry(code) {
    const i = 0;
    while(countries[i] && (countries[i].dial_code === code || countries[i].dial_code === '+' + code)) {
        i++;
    }
    if (countries[i]) {
        return countries[i].name; // Or countries[i].code, or the whole countries[i] object
    }
    return 'No country found';
}

Une solution possible (peut-être que je me trompe):
- S'il s'agit d'une application en ligne, vous «scannez» pour trouver le code du pays en fonction de l'adresse IP, puis affichez le code du pays.
- ou vous rendez le champ du code du pays obligatoire

Ce n'est pas vraiment possible. Si vous ne connaissez pas le code du pays, il n'est pas possible de déterminer le pays uniquement par le numéro de téléphone local.

Habituellement, les numéros sans code de pays se trouvent dans le même pays que l'utilisateur auquel appartient le répertoire. Vous pouvez donc simplement utiliser le pays de l'utilisateur par défaut si aucun code de pays n'est spécifié.