Get the value of selected option

[mluci12]

Hello,
How can i get the value of this select live (mluci.com/d) a prefix number, and add in next input?

Hi
See if this example helps you. The <select> element must have an "id".

Code: Select all

<select name="countryCode" id="countryCode">
 <option data-countryCode="GB" value="44" Selected>UK (+44)</option>
 <option data-countryCode="US" value="1">USA (+1)</option>
 <optgroup label="Other countries">
  <option data-countryCode="DZ" value="213">Algeria (+213)</option>
  <option data-countryCode="AD" value="376">Andorra (+376)</option>
  <option data-countryCode="AO" value="244">Angola (+244)</option>
  <option data-countryCode="AI" value="1264">Anguilla (+1264)</option>
  <option data-countryCode="AG" value="1268">Antigua & Barbuda (+1268)</option>
  <option data-countryCode="AR" value="54">Argentina (+54)</option>
  <option data-countryCode="AM" value="374">Armenia (+374)</option>
  <option data-countryCode="AW" value="297">Aruba (+297)</option>
  <option data-countryCode="AU" value="61">Australia (+61)</option>
  <option data-countryCode="AT" value="43">Austria (+43)</option>
  <option data-countryCode="AZ" value="994">Azerbaijan (+994)</option>
  <option data-countryCode="BS" value="1242">Bahamas (+1242)</option>
  <option data-countryCode="BH" value="973">Bahrain (+973)</option>
  <option data-countryCode="BD" value="880">Bangladesh (+880)</option>
  <option data-countryCode="BB" value="1246">Barbados (+1246)</option>
  <option data-countryCode="BY" value="375">Belarus (+375)</option>
  <option data-countryCode="BE" value="32">Belgium (+32)</option>
  <option data-countryCode="BZ" value="501">Belize (+501)</option>
  <option data-countryCode="BJ" value="229">Benin (+229)</option>
  <option data-countryCode="BM" value="1441">Bermuda (+1441)</option>
  <option data-countryCode="BT" value="975">Bhutan (+975)</option>
  <option data-countryCode="BO" value="591">Bolivia (+591)</option>
  <option data-countryCode="BA" value="387">Bosnia Herzegovina (+387)</option>
  <option data-countryCode="BW" value="267">Botswana (+267)</option>
  <option data-countryCode="BR" value="55">Brazil (+55)</option>
  <option data-countryCode="BN" value="673">Brunei (+673)</option>
  <option data-countryCode="BG" value="359">Bulgaria (+359)</option>
  <option data-countryCode="BF" value="226">Burkina Faso (+226)</option>
  <option data-countryCode="BI" value="257">Burundi (+257)</option>
  <option data-countryCode="KH" value="855">Cambodia (+855)</option>
  <option data-countryCode="CM" value="237">Cameroon (+237)</option>
  <option data-countryCode="CA" value="1">Canada (+1)</option>
  <option data-countryCode="CV" value="238">Cape Verde Islands (+238)</option>
  <option data-countryCode="KY" value="1345">Cayman Islands (+1345)</option>
  <option data-countryCode="CF" value="236">Central African Republic (+236)</option>
  <option data-countryCode="CL" value="56">Chile (+56)</option>
  <option data-countryCode="CN" value="86">China (+86)</option>
  <option data-countryCode="CO" value="57">Colombia (+57)</option>
  <option data-countryCode="KM" value="269">Comoros (+269)</option>
  <option data-countryCode="CG" value="242">Congo (+242)</option>
  <option data-countryCode="CK" value="682">Cook Islands (+682)</option>
  <option data-countryCode="CR" value="506">Costa Rica (+506)</option>
  <option data-countryCode="HR" value="385">Croatia (+385)</option>
  <option data-countryCode="CU" value="53">Cuba (+53)</option>
  <option data-countryCode="CY" value="90392">Cyprus North (+90392)</option>
  <option data-countryCode="CY" value="357">Cyprus South (+357)</option>
  <option data-countryCode="CZ" value="42">Czech Republic (+42)</option>
  <option data-countryCode="DK" value="45">Denmark (+45)</option>
  <option data-countryCode="DJ" value="253">Djibouti (+253)</option>
  <option data-countryCode="DM" value="1809">Dominica (+1809)</option>
  <option data-countryCode="DO" value="1809">Dominican Republic (+1809)</option>
  <option data-countryCode="EC" value="593">Ecuador (+593)</option>
  <option data-countryCode="EG" value="20">Egypt (+20)</option>
  <option data-countryCode="SV" value="503">El Salvador (+503)</option>
  <option data-countryCode="GQ" value="240">Equatorial Guinea (+240)</option>
  <option data-countryCode="ER" value="291">Eritrea (+291)</option>
  <option data-countryCode="EE" value="372">Estonia (+372)</option>
  <option data-countryCode="ET" value="251">Ethiopia (+251)</option>
  <option data-countryCode="FK" value="500">Falkland Islands (+500)</option>
  <option data-countryCode="FO" value="298">Faroe Islands (+298)</option>
  <option data-countryCode="FJ" value="679">Fiji (+679)</option>
  <option data-countryCode="FI" value="358">Finland (+358)</option>
  <option data-countryCode="FR" value="33">France (+33)</option>
  <option data-countryCode="GF" value="594">French Guiana (+594)</option>
  <option data-countryCode="PF" value="689">French Polynesia (+689)</option>
  <option data-countryCode="GA" value="241">Gabon (+241)</option>
  <option data-countryCode="GM" value="220">Gambia (+220)</option>
  <option data-countryCode="GE" value="7880">Georgia (+7880)</option>
  <option data-countryCode="DE" value="49">Germany (+49)</option>
  <option data-countryCode="GH" value="233">Ghana (+233)</option>
  <option data-countryCode="GI" value="350">Gibraltar (+350)</option>
  <option data-countryCode="GR" value="30">Greece (+30)</option>
  <option data-countryCode="GL" value="299">Greenland (+299)</option>
  <option data-countryCode="GD" value="1473">Grenada (+1473)</option>
  <option data-countryCode="GP" value="590">Guadeloupe (+590)</option>
  <option data-countryCode="GU" value="671">Guam (+671)</option>
  <option data-countryCode="GT" value="502">Guatemala (+502)</option>
  <option data-countryCode="GN" value="224">Guinea (+224)</option>
  <option data-countryCode="GW" value="245">Guinea - Bissau (+245)</option>
  <option data-countryCode="GY" value="592">Guyana (+592)</option>
  <option data-countryCode="HT" value="509">Haiti (+509)</option>
  <option data-countryCode="HN" value="504">Honduras (+504)</option>
  <option data-countryCode="HK" value="852">Hong Kong (+852)</option>
  <option data-countryCode="HU" value="36">Hungary (+36)</option>
  <option data-countryCode="IS" value="354">Iceland (+354)</option>
  <option data-countryCode="IN" value="91">India (+91)</option>
  <option data-countryCode="ID" value="62">Indonesia (+62)</option>
  <option data-countryCode="IR" value="98">Iran (+98)</option>
  <option data-countryCode="IQ" value="964">Iraq (+964)</option>
  <option data-countryCode="IE" value="353">Ireland (+353)</option>
  <option data-countryCode="IL" value="972">Israel (+972)</option>
  <option data-countryCode="IT" value="39">Italy (+39)</option>
  <option data-countryCode="JM" value="1876">Jamaica (+1876)</option>
  <option data-countryCode="JP" value="81">Japan (+81)</option>
  <option data-countryCode="JO" value="962">Jordan (+962)</option>
  <option data-countryCode="KZ" value="7">Kazakhstan (+7)</option>
  <option data-countryCode="KE" value="254">Kenya (+254)</option>
  <option data-countryCode="KI" value="686">Kiribati (+686)</option>
  <option data-countryCode="KP" value="850">Korea North (+850)</option>
  <option data-countryCode="KR" value="82">Korea South (+82)</option>
  <option data-countryCode="KW" value="965">Kuwait (+965)</option>
  <option data-countryCode="KG" value="996">Kyrgyzstan (+996)</option>
  <option data-countryCode="LA" value="856">Laos (+856)</option>
  <option data-countryCode="LV" value="371">Latvia (+371)</option>
  <option data-countryCode="LB" value="961">Lebanon (+961)</option>
  <option data-countryCode="LS" value="266">Lesotho (+266)</option>
  <option data-countryCode="LR" value="231">Liberia (+231)</option>
  <option data-countryCode="LY" value="218">Libya (+218)</option>
  <option data-countryCode="LI" value="417">Liechtenstein (+417)</option>
  <option data-countryCode="LT" value="370">Lithuania (+370)</option>
  <option data-countryCode="LU" value="352">Luxembourg (+352)</option>
  <option data-countryCode="MO" value="853">Macao (+853)</option>
  <option data-countryCode="MK" value="389">Macedonia (+389)</option>
  <option data-countryCode="MG" value="261">Madagascar (+261)</option>
  <option data-countryCode="MW" value="265">Malawi (+265)</option>
  <option data-countryCode="MY" value="60">Malaysia (+60)</option>
  <option data-countryCode="MV" value="960">Maldives (+960)</option>
  <option data-countryCode="ML" value="223">Mali (+223)</option>
  <option data-countryCode="MT" value="356">Malta (+356)</option>
  <option data-countryCode="MH" value="692">Marshall Islands (+692)</option>
  <option data-countryCode="MQ" value="596">Martinique (+596)</option>
  <option data-countryCode="MR" value="222">Mauritania (+222)</option>
  <option data-countryCode="YT" value="269">Mayotte (+269)</option>
  <option data-countryCode="MX" value="52">Mexico (+52)</option>
  <option data-countryCode="FM" value="691">Micronesia (+691)</option>
  <option data-countryCode="MD" value="373">Moldova (+373)</option>
  <option data-countryCode="MC" value="377">Monaco (+377)</option>
  <option data-countryCode="MN" value="976">Mongolia (+976)</option>
  <option data-countryCode="MS" value="1664">Montserrat (+1664)</option>
  <option data-countryCode="MA" value="212">Morocco (+212)</option>
  <option data-countryCode="MZ" value="258">Mozambique (+258)</option>
  <option data-countryCode="MN" value="95">Myanmar (+95)</option>
  <option data-countryCode="NA" value="264">Namibia (+264)</option>
  <option data-countryCode="NR" value="674">Nauru (+674)</option>
  <option data-countryCode="NP" value="977">Nepal (+977)</option>
  <option data-countryCode="NL" value="31">Netherlands (+31)</option>
  <option data-countryCode="NC" value="687">New Caledonia (+687)</option>
  <option data-countryCode="NZ" value="64">New Zealand (+64)</option>
  <option data-countryCode="NI" value="505">Nicaragua (+505)</option>
  <option data-countryCode="NE" value="227">Niger (+227)</option>
  <option data-countryCode="NG" value="234">Nigeria (+234)</option>
  <option data-countryCode="NU" value="683">Niue (+683)</option>
  <option data-countryCode="NF" value="672">Norfolk Islands (+672)</option>
  <option data-countryCode="NP" value="670">Northern Marianas (+670)</option>
  <option data-countryCode="NO" value="47">Norway (+47)</option>
  <option data-countryCode="OM" value="968">Oman (+968)</option>
  <option data-countryCode="PW" value="680">Palau (+680)</option>
  <option data-countryCode="PA" value="507">Panama (+507)</option>
  <option data-countryCode="PG" value="675">Papua New Guinea (+675)</option>
  <option data-countryCode="PY" value="595">Paraguay (+595)</option>
  <option data-countryCode="PE" value="51">Peru (+51)</option>
  <option data-countryCode="PH" value="63">Philippines (+63)</option>
  <option data-countryCode="PL" value="48">Poland (+48)</option>
  <option data-countryCode="PT" value="351">Portugal (+351)</option>
  <option data-countryCode="PR" value="1787">Puerto Rico (+1787)</option>
  <option data-countryCode="QA" value="974">Qatar (+974)</option>
  <option data-countryCode="RE" value="262">Reunion (+262)</option>
  <option data-countryCode="RO" value="40">Romania (+40)</option>
  <option data-countryCode="RU" value="7">Russia (+7)</option>
  <option data-countryCode="RW" value="250">Rwanda (+250)</option>
  <option data-countryCode="SM" value="378">San Marino (+378)</option>
  <option data-countryCode="ST" value="239">Sao Tome & Principe (+239)</option>
  <option data-countryCode="SA" value="966">Saudi Arabia (+966)</option>
  <option data-countryCode="SN" value="221">Senegal (+221)</option>
  <option data-countryCode="CS" value="381">Serbia (+381)</option>
  <option data-countryCode="SC" value="248">Seychelles (+248)</option>
  <option data-countryCode="SL" value="232">Sierra Leone (+232)</option>
  <option data-countryCode="SG" value="65">Singapore (+65)</option>
  <option data-countryCode="SK" value="421">Slovak Republic (+421)</option>
  <option data-countryCode="SI" value="386">Slovenia (+386)</option>
  <option data-countryCode="SB" value="677">Solomon Islands (+677)</option>
  <option data-countryCode="SO" value="252">Somalia (+252)</option>
  <option data-countryCode="ZA" value="27">South Africa (+27)</option>
  <option data-countryCode="ES" value="34">Spain (+34)</option>
  <option data-countryCode="LK" value="94">Sri Lanka (+94)</option>
  <option data-countryCode="SH" value="290">St. Helena (+290)</option>
  <option data-countryCode="KN" value="1869">St. Kitts (+1869)</option>
  <option data-countryCode="SC" value="1758">St. Lucia (+1758)</option>
  <option data-countryCode="SD" value="249">Sudan (+249)</option>
  <option data-countryCode="SR" value="597">Suriname (+597)</option>
  <option data-countryCode="SZ" value="268">Swaziland (+268)</option>
  <option data-countryCode="SE" value="46">Sweden (+46)</option>
  <option data-countryCode="CH" value="41">Switzerland (+41)</option>
  <option data-countryCode="SI" value="963">Syria (+963)</option>
  <option data-countryCode="TW" value="886">Taiwan (+886)</option>
  <option data-countryCode="TJ" value="7">Tajikstan (+7)</option>
  <option data-countryCode="TH" value="66">Thailand (+66)</option>
  <option data-countryCode="TG" value="228">Togo (+228)</option>
  <option data-countryCode="TO" value="676">Tonga (+676)</option>
  <option data-countryCode="TT" value="1868">Trinidad & Tobago (+1868)</option>
  <option data-countryCode="TN" value="216">Tunisia (+216)</option>
  <option data-countryCode="TR" value="90">Turkey (+90)</option>
  <option data-countryCode="TM" value="7">Turkmenistan (+7)</option>
  <option data-countryCode="TM" value="993">Turkmenistan (+993)</option>
  <option data-countryCode="TC" value="1649">Turks & Caicos Islands (+1649)</option>
  <option data-countryCode="TV" value="688">Tuvalu (+688)</option>
  <option data-countryCode="UG" value="256">Uganda (+256)</option>
  <!-- <option data-countryCode="GB" value="44">UK (+44)</option> -->
  <option data-countryCode="UA" value="380">Ukraine (+380)</option>
  <option data-countryCode="AE" value="971">United Arab Emirates (+971)</option>
  <option data-countryCode="UY" value="598">Uruguay (+598)</option>
  <!-- <option data-countryCode="US" value="1">USA (+1)</option> -->
  <option data-countryCode="UZ" value="7">Uzbekistan (+7)</option>
  <option data-countryCode="VU" value="678">Vanuatu (+678)</option>
  <option data-countryCode="VA" value="379">Vatican City (+379)</option>
  <option data-countryCode="VE" value="58">Venezuela (+58)</option>
  <option data-countryCode="VN" value="84">Vietnam (+84)</option>
  <option data-countryCode="VG" value="84">Virgin Islands - British (+1284)</option>
  <option data-countryCode="VI" value="84">Virgin Islands - US (+1340)</option>
  <option data-countryCode="WF" value="681">Wallis & Futuna (+681)</option>
  <option data-countryCode="YE" value="969">Yemen (North)(+969)</option>
  <option data-countryCode="YE" value="967">Yemen (South)(+967)</option>
  <option data-countryCode="ZM" value="260">Zambia (+260)</option>
  <option data-countryCode="ZW" value="263">Zimbabwe (+263)</option>
 </optgroup>
</select><br>
<input name="username" id="username" class="form-control input-lg" placeholder="Phone" value="" tabindex="1" type="number" />
<script>
var usrname = document.getElementById('username');

//if #countryCode exiss, register change event
var ccode = document.getElementById('countryCode');
if(ccode){
  ccode.addEventListener('change', function(e){
    //adds the value of selected option in #usrname
    usrname.value = e.target.value;
  });
}
</script>

Demo:

UK (+44) USA (+1) Algeria (+213) Andorra (+376) Angola (+244) Anguilla (+1264) Antigua & Barbuda (+1268) Argentina (+54) Armenia (+374) Aruba (+297) Australia (+61) Austria (+43) Azerbaijan (+994) Bahamas (+1242) Bahrain (+973) Bangladesh (+880) Barbados (+1246) Belarus (+375) Belgium (+32) Belize (+501) Benin (+229) Bermuda (+1441) Bhutan (+975) Bolivia (+591) Bosnia Herzegovina (+387) Botswana (+267) Brazil (+55) Brunei (+673) Bulgaria (+359) Burkina Faso (+226) Burundi (+257) Cambodia (+855) Cameroon (+237) Canada (+1) Cape Verde Islands (+238) Cayman Islands (+1345) Central African Republic (+236) Chile (+56) China (+86) Colombia (+57) Comoros (+269) Congo (+242) Cook Islands (+682) Costa Rica (+506) Croatia (+385) Cuba (+53) Cyprus North (+90392) Cyprus South (+357) Czech Republic (+42) Denmark (+45) Djibouti (+253) Dominica (+1809) Dominican Republic (+1809) Ecuador (+593) Egypt (+20) El Salvador (+503) Equatorial Guinea (+240) Eritrea (+291) Estonia (+372) Ethiopia (+251) Falkland Islands (+500) Faroe Islands (+298) Fiji (+679) Finland (+358) France (+33) French Guiana (+594) French Polynesia (+689) Gabon (+241) Gambia (+220) Georgia (+7880) Germany (+49) Ghana (+233) Gibraltar (+350) Greece (+30) Greenland (+299) Grenada (+1473) Guadeloupe (+590) Guam (+671) Guatemala (+502) Guinea (+224) Guinea - Bissau (+245) Guyana (+592) Haiti (+509) Honduras (+504) Hong Kong (+852) Hungary (+36) Iceland (+354) India (+91) Indonesia (+62) Iran (+98) Iraq (+964) Ireland (+353) Israel (+972) Italy (+39) Jamaica (+1876) Japan (+81) Jordan (+962) Kazakhstan (+7) Kenya (+254) Kiribati (+686) Korea North (+850) Korea South (+82) Kuwait (+965) Kyrgyzstan (+996) Laos (+856) Latvia (+371) Lebanon (+961) Lesotho (+266) Liberia (+231) Libya (+218) Liechtenstein (+417) Lithuania (+370) Luxembourg (+352) Macao (+853) Macedonia (+389) Madagascar (+261) Malawi (+265) Malaysia (+60) Maldives (+960) Mali (+223) Malta (+356) Marshall Islands (+692) Martinique (+596) Mauritania (+222) Mayotte (+269) Mexico (+52) Micronesia (+691) Moldova (+373) Monaco (+377) Mongolia (+976) Montserrat (+1664) Morocco (+212) Mozambique (+258) Myanmar (+95) Namibia (+264) Nauru (+674) Nepal (+977) Netherlands (+31) New Caledonia (+687) New Zealand (+64) Nicaragua (+505) Niger (+227) Nigeria (+234) Niue (+683) Norfolk Islands (+672) Northern Marianas (+670) Norway (+47) Oman (+968) Palau (+680) Panama (+507) Papua New Guinea (+675) Paraguay (+595) Peru (+51) Philippines (+63) Poland (+48) Portugal (+351) Puerto Rico (+1787) Qatar (+974) Reunion (+262) Romania (+40) Russia (+7) Rwanda (+250) San Marino (+378) Sao Tome & Principe (+239) Saudi Arabia (+966) Senegal (+221) Serbia (+381) Seychelles (+248) Sierra Leone (+232) Singapore (+65) Slovak Republic (+421) Slovenia (+386) Solomon Islands (+677) Somalia (+252) South Africa (+27) Spain (+34) Sri Lanka (+94) St. Helena (+290) St. Kitts (+1869) St. Lucia (+1758) Sudan (+249) Suriname (+597) Swaziland (+268) Sweden (+46) Switzerland (+41) Syria (+963) Taiwan (+886) Tajikstan (+7) Thailand (+66) Togo (+228) Tonga (+676) Trinidad & Tobago (+1868) Tunisia (+216) Turkey (+90) Turkmenistan (+7) Turkmenistan (+993) Turks & Caicos Islands (+1649) Tuvalu (+688) Uganda (+256)Ukraine (+380) United Arab Emirates (+971) Uruguay (+598) Uzbekistan (+7) Vanuatu (+678) Vatican City (+379) Venezuela (+58) Vietnam (+84) Virgin Islands - British (+1284) Virgin Islands - US (+1340) Wallis & Futuna (+681) Yemen (North)(+969) Yemen (South)(+967) Zambia (+260) Zimbabwe (+263)