Copiar valor de los inputs con javascript
En este artículo nos vamos a centrar directamente en el ejemplo, en el cual vamos a tener un formulario con una dirección de envío rellenada y una dirección de facturación por rellenar.
Tendremos un botón o link intermedio que su funcionalidad será copiar los valores de los inputs de los datos de envío en los valores de los inputs de los campos de dirección de facturación.
Este efecto se puede conseguir de varías formas pero aquí emplearemos javascript. Tendremos una función que llamaremos en nuestro <head> de la siguiente forma:
<script language="javascript"> function copy_address() { document.getElementById('address2').value = document.getElementById('address').value; document.getElementById('zipCode2').value = document.getElementById('zipCode').value; document.getElementById('city2').value = document.getElementById('city').value; document.getElementById('state2').value = document.getElementById('state').value; document.getElementById('country2').value = document.getElementById('country').value; } </script>
Lo que hacemos es utilizar la famosa función de javascript «getElementById(‘id’).value» para coger los valores del elemento con id que le pasemos como parámetros.
Simplemente lo que hacemos es asignar los valores de los campos de la dirección de envío en los campos de la dirección de facturación.
El formulario puede ser como el siguiente:
<form id="registro"> <h2>Dirección de envío</h2> <table> <tr> <td>Dirección:</td> <td><input type="text" name="address" id="address" value="Avenida Roma nº2"></td> </tr> <tr> <td>Código postal:</td> <td><input type="text" name="zipCode" id="zipCode" value="08200"></td> </tr> <tr> <td>Población:</td> <td> <input type="text" name="city" id="city" value="Sabadell"></td> </tr> <tr> <td>Provincia:</td> <td><input type="text" name="state" id="state" value="Barcelona"></td> </tr> <tr> <td>País:</td> <td><select name="country" id="country"><option value="">Seleccione...</option><option value="1">Afghanistan</option><option value="2">Albania</option><option value="3">Algeria</option><option value="4">American Samoa</option><option value="5">Andorra</option><option value="6">Angola</option><option value="7">Anguilla</option><option value="8">Antarctica</option><option value="9">Antigua and Barbuda</option><option value="10">Argentina</option><option value="11">Armenia</option><option value="12">Aruba</option><option value="13">Australia</option><option value="14">Austria</option><option value="15">Azerbaijan</option><option value="16">Bahamas</option><option value="17">Bahrain</option><option value="18">Bangladesh</option><option value="19">Barbados</option><option value="20">Belarus</option><option value="21">Belgium</option><option value="22">Belize</option><option value="23">Benin</option><option value="24">Bermuda</option><option value="25">Bhutan</option><option value="26">Bolivia</option><option value="27">Bosnia and Herzegowina</option><option value="28">Botswana</option><option value="29">Bouvet Island</option><option value="30">Brazil</option><option value="31">British Indian Ocean Territory</option><option value="32">Brunei Darussalam</option><option value="33">Bulgaria</option><option value="34">Burkina Faso</option><option value="35">Burundi</option><option value="36">Cambodia</option><option value="37">Cameroon</option><option value="38">Canada</option><option value="39">Cape Verde</option><option value="40">Cayman Islands</option><option value="41">Central African Republic</option><option value="42">Chad</option><option value="43">Chile</option><option value="44">China</option><option value="45">Christmas Island</option><option value="46">Cocos (Keeling) Islands</option><option value="47">Colombia</option><option value="48">Comoros</option><option value="49">Congo</option><option value="50">Cook Islands</option><option value="51">Costa Rica</option><option value="52">Cote D'Ivoire</option><option value="53">Croatia</option><option value="54">Cuba</option><option value="55">Cyprus</option><option value="56">Czech Republic</option><option value="57">Denmark</option><option value="58">Djibouti</option><option value="59">Dominica</option><option value="60">Dominican Republic</option><option value="61">East Timor</option><option value="62">Ecuador</option><option value="63">Egypt</option><option value="64">El Salvador</option><option value="65">Equatorial Guinea</option><option value="66">Eritrea</option><option value="67">Estonia</option><option value="68">Ethiopia</option><option value="69">Falkland Islands (Malvinas)</option><option value="70">Faroe Islands</option><option value="71">Fiji</option><option value="72">Finland</option><option value="73">France</option><option value="74">France, Metropolitan</option><option value="75">French Guiana</option><option value="76">French Polynesia</option><option value="77">French Southern Territories</option><option value="78">Gabon</option><option value="79">Gambia</option><option value="80">Georgia</option><option value="81">Germany</option><option value="82">Ghana</option><option value="83">Gibraltar</option><option value="84">Greece</option><option value="85">Greenland</option><option value="86">Grenada</option><option value="87">Guadeloupe</option><option value="88">Guam</option><option value="89">Guatemala</option><option value="90">Guinea</option><option value="91">Guinea-bissau</option><option value="92">Guyana</option><option value="93">Haiti</option><option value="94">Heard and Mc Donald Islands</option><option value="95">Honduras</option><option value="96">Hong Kong</option><option value="97">Hungary</option><option value="98">Iceland</option><option value="99">India</option><option value="100">Indonesia</option><option value="101">Iran (Islamic Republic of)</option><option value="102">Iraq</option><option value="103">Ireland</option><option value="104">Israel</option><option value="105">Italy</option><option value="106">Jamaica</option><option value="107">Japan</option><option value="108">Jordan</option><option value="109">Kazakhstan</option><option value="110">Kenya</option><option value="111">Kiribati</option><option value="112">Korea, Democratic People's Republic of</option><option value="113">Korea, Republic of</option><option value="114">Kuwait</option><option value="115">Kyrgyzstan</option><option value="116">Lao People's Democratic Republic</option><option value="117">Latvia</option><option value="118">Lebanon</option><option value="119">Lesotho</option><option value="120">Liberia</option><option value="121">Libyan Arab Jamahiriya</option><option value="122">Liechtenstein</option><option value="123">Lithuania</option><option value="124">Luxembourg</option><option value="125">Macau</option><option value="126">Macedonia, The Former Yugoslav Republic of</option><option value="127">Madagascar</option><option value="128">Malawi</option><option value="129">Malaysia</option><option value="130">Maldives</option><option value="131">Mali</option><option value="132">Malta</option><option value="133">Marshall Islands</option><option value="134">Martinique</option><option value="135">Mauritania</option><option value="136">Mauritius</option><option value="137">Mayotte</option><option value="138">Mexico</option><option value="139">Micronesia, Federated States of</option><option value="140">Moldova, Republic of</option><option value="141">Monaco</option><option value="142">Mongolia</option><option value="143">Montserrat</option><option value="144">Morocco</option><option value="145">Mozambique</option><option value="146">Myanmar</option><option value="147">Namibia</option><option value="148">Nauru</option><option value="149">Nepal</option><option value="150">Netherlands</option><option value="151">Netherlands Antilles</option><option value="152">New Caledonia</option><option value="153">New Zealand</option><option value="154">Nicaragua</option><option value="155">Niger</option><option value="156">Nigeria</option><option value="157">Niue</option><option value="158">Norfolk Island</option><option value="159">Northern Mariana Islands</option><option value="160">Norway</option><option value="161">Oman</option><option value="162">Pakistan</option><option value="163">Palau</option><option value="164">Panama</option><option value="165">Papua New Guinea</option><option value="166">Paraguay</option><option value="167">Peru</option><option value="168">Philippines</option><option value="169">Pitcairn</option><option value="170">Poland</option><option value="171">Portugal</option><option value="172">Puerto Rico</option><option value="173">Qatar</option><option value="174">Reunion</option><option value="175">Romania</option><option value="176">Russian Federation</option><option value="177">Rwanda</option><option value="178">Saint Kitts and Nevis</option><option value="179">Saint Lucia</option><option value="180">Saint Vincent and the Grenadines</option><option value="181">Samoa</option><option value="182">San Marino</option><option value="183">Sao Tome and Principe</option><option value="184">Saudi Arabia</option><option value="185">Senegal</option><option value="186">Seychelles</option><option value="187">Sierra Leone</option><option value="188">Singapore</option><option value="189">Slovakia (Slovak Republic)</option><option value="190">Slovenia</option><option value="191">Solomon Islands</option><option value="192">Somalia</option><option value="193">South Africa</option><option value="194">South Georgia and the South Sandwich Islands</option><option value="195" selected>Spain</option><option value="196">Sri Lanka</option><option value="197">St. Helena</option><option value="198">St. Pierre and Miquelon</option><option value="199">Sudan</option><option value="200">Suriname</option><option value="201">Svalbard and Jan Mayen Islands</option><option value="202">Swaziland</option><option value="203">Sweden</option><option value="204">Switzerland</option><option value="205">Syrian Arab Republic</option><option value="206">Taiwan</option><option value="207">Tajikistan</option><option value="208">Tanzania, United Republic of</option><option value="209">Thailand</option><option value="210">Togo</option><option value="211">Tokelau</option><option value="212">Tonga</option><option value="213">Trinidad and Tobago</option><option value="214">Tunisia</option><option value="215">Turkey</option><option value="216">Turkmenistan</option><option value="217">Turks and Caicos Islands</option><option value="218">Tuvalu</option><option value="219">Uganda</option><option value="220">Ukraine</option><option value="221">United Arab Emirates</option><option value="222">United Kingdom</option><option value="223">United States</option><option value="224">Outlying Islands</option><option value="225">Uruguay</option><option value="226">Uzbekistan</option><option value="227">Vanuatu</option><option value="228">Vatican City State</option><option value="229">Venezuela</option><option value="230">Viet Nam</option><option value="231">Virgin Islands (British)</option><option value="232">Virgin Islands (U.S.)</option><option value="233">Wallis and Futuna Islands</option><option value="234">Western Sahara</option><option value="235">Yemen</option><option value="236">Yugoslavia</option><option value="237">Zaire</option><option value="238">Zambia</option><option value="239">Zimbabwe</option></select></td> </tr> </table> <h2>Dirección de facturación <a id="copy" onclick="copy_address()">Copiar dirección de envío</a></h2> <table> <tr> <td>Dirección:</td> <td><input type="text" name="address2" id="address2"></td> </tr> <tr> <td>Código postal:</td> <td><input type="text" name="zipCode2" id="zipCode2"></td> </tr> <tr> <td>Población:</td> <td> <input type="text" name="city2" id="city2"></td> </tr> <tr> <td>Provincia:</td> <td><input type="text" name="state2" id="state2"></td> </tr> <tr> <td>País:</td> <td><select name="country2" id="country2"><option value="">Seleccione...</option><option value="1">Afghanistan</option><option value="2">Albania</option><option value="3">Algeria</option><option value="4">American Samoa</option><option value="5">Andorra</option><option value="6">Angola</option><option value="7">Anguilla</option><option value="8">Antarctica</option><option value="9">Antigua and Barbuda</option><option value="10">Argentina</option><option value="11">Armenia</option><option value="12">Aruba</option><option value="13">Australia</option><option value="14">Austria</option><option value="15">Azerbaijan</option><option value="16">Bahamas</option><option value="17">Bahrain</option><option value="18">Bangladesh</option><option value="19">Barbados</option><option value="20">Belarus</option><option value="21">Belgium</option><option value="22">Belize</option><option value="23">Benin</option><option value="24">Bermuda</option><option value="25">Bhutan</option><option value="26">Bolivia</option><option value="27">Bosnia and Herzegowina</option><option value="28">Botswana</option><option value="29">Bouvet Island</option><option value="30">Brazil</option><option value="31">British Indian Ocean Territory</option><option value="32">Brunei Darussalam</option><option value="33">Bulgaria</option><option value="34">Burkina Faso</option><option value="35">Burundi</option><option value="36">Cambodia</option><option value="37">Cameroon</option><option value="38">Canada</option><option value="39">Cape Verde</option><option value="40">Cayman Islands</option><option value="41">Central African Republic</option><option value="42">Chad</option><option value="43">Chile</option><option value="44">China</option><option value="45">Christmas Island</option><option value="46">Cocos (Keeling) Islands</option><option value="47">Colombia</option><option value="48">Comoros</option><option value="49">Congo</option><option value="50">Cook Islands</option><option value="51">Costa Rica</option><option value="52">Cote D'Ivoire</option><option value="53">Croatia</option><option value="54">Cuba</option><option value="55">Cyprus</option><option value="56">Czech Republic</option><option value="57">Denmark</option><option value="58">Djibouti</option><option value="59">Dominica</option><option value="60">Dominican Republic</option><option value="61">East Timor</option><option value="62">Ecuador</option><option value="63">Egypt</option><option value="64">El Salvador</option><option value="65">Equatorial Guinea</option><option value="66">Eritrea</option><option value="67">Estonia</option><option value="68">Ethiopia</option><option value="69">Falkland Islands (Malvinas)</option><option value="70">Faroe Islands</option><option value="71">Fiji</option><option value="72">Finland</option><option value="73">France</option><option value="74">France, Metropolitan</option><option value="75">French Guiana</option><option value="76">French Polynesia</option><option value="77">French Southern Territories</option><option value="78">Gabon</option><option value="79">Gambia</option><option value="80">Georgia</option><option value="81">Germany</option><option value="82">Ghana</option><option value="83">Gibraltar</option><option value="84">Greece</option><option value="85">Greenland</option><option value="86">Grenada</option><option value="87">Guadeloupe</option><option value="88">Guam</option><option value="89">Guatemala</option><option value="90">Guinea</option><option value="91">Guinea-bissau</option><option value="92">Guyana</option><option value="93">Haiti</option><option value="94">Heard and Mc Donald Islands</option><option value="95">Honduras</option><option value="96">Hong Kong</option><option value="97">Hungary</option><option value="98">Iceland</option><option value="99">India</option><option value="100">Indonesia</option><option value="101">Iran (Islamic Republic of)</option><option value="102">Iraq</option><option value="103">Ireland</option><option value="104">Israel</option><option value="105">Italy</option><option value="106">Jamaica</option><option value="107">Japan</option><option value="108">Jordan</option><option value="109">Kazakhstan</option><option value="110">Kenya</option><option value="111">Kiribati</option><option value="112">Korea, Democratic People's Republic of</option><option value="113">Korea, Republic of</option><option value="114">Kuwait</option><option value="115">Kyrgyzstan</option><option value="116">Lao People's Democratic Republic</option><option value="117">Latvia</option><option value="118">Lebanon</option><option value="119">Lesotho</option><option value="120">Liberia</option><option value="121">Libyan Arab Jamahiriya</option><option value="122">Liechtenstein</option><option value="123">Lithuania</option><option value="124">Luxembourg</option><option value="125">Macau</option><option value="126">Macedonia, The Former Yugoslav Republic of</option><option value="127">Madagascar</option><option value="128">Malawi</option><option value="129">Malaysia</option><option value="130">Maldives</option><option value="131">Mali</option><option value="132">Malta</option><option value="133">Marshall Islands</option><option value="134">Martinique</option><option value="135">Mauritania</option><option value="136">Mauritius</option><option value="137">Mayotte</option><option value="138">Mexico</option><option value="139">Micronesia, Federated States of</option><option value="140">Moldova, Republic of</option><option value="141">Monaco</option><option value="142">Mongolia</option><option value="143">Montserrat</option><option value="144">Morocco</option><option value="145">Mozambique</option><option value="146">Myanmar</option><option value="147">Namibia</option><option value="148">Nauru</option><option value="149">Nepal</option><option value="150">Netherlands</option><option value="151">Netherlands Antilles</option><option value="152">New Caledonia</option><option value="153">New Zealand</option><option value="154">Nicaragua</option><option value="155">Niger</option><option value="156">Nigeria</option><option value="157">Niue</option><option value="158">Norfolk Island</option><option value="159">Northern Mariana Islands</option><option value="160">Norway</option><option value="161">Oman</option><option value="162">Pakistan</option><option value="163">Palau</option><option value="164">Panama</option><option value="165">Papua New Guinea</option><option value="166">Paraguay</option><option value="167">Peru</option><option value="168">Philippines</option><option value="169">Pitcairn</option><option value="170">Poland</option><option value="171">Portugal</option><option value="172">Puerto Rico</option><option value="173">Qatar</option><option value="174">Reunion</option><option value="175">Romania</option><option value="176">Russian Federation</option><option value="177">Rwanda</option><option value="178">Saint Kitts and Nevis</option><option value="179">Saint Lucia</option><option value="180">Saint Vincent and the Grenadines</option><option value="181">Samoa</option><option value="182">San Marino</option><option value="183">Sao Tome and Principe</option><option value="184">Saudi Arabia</option><option value="185">Senegal</option><option value="186">Seychelles</option><option value="187">Sierra Leone</option><option value="188">Singapore</option><option value="189">Slovakia (Slovak Republic)</option><option value="190">Slovenia</option><option value="191">Solomon Islands</option><option value="192">Somalia</option><option value="193">South Africa</option><option value="194">South Georgia and the South Sandwich Islands</option><option value="195">Spain</option><option value="196">Sri Lanka</option><option value="197">St. Helena</option><option value="198">St. Pierre and Miquelon</option><option value="199">Sudan</option><option value="200">Suriname</option><option value="201">Svalbard and Jan Mayen Islands</option><option value="202">Swaziland</option><option value="203">Sweden</option><option value="204">Switzerland</option><option value="205">Syrian Arab Republic</option><option value="206">Taiwan</option><option value="207">Tajikistan</option><option value="208">Tanzania, United Republic of</option><option value="209">Thailand</option><option value="210">Togo</option><option value="211">Tokelau</option><option value="212">Tonga</option><option value="213">Trinidad and Tobago</option><option value="214">Tunisia</option><option value="215">Turkey</option><option value="216">Turkmenistan</option><option value="217">Turks and Caicos Islands</option><option value="218">Tuvalu</option><option value="219">Uganda</option><option value="220">Ukraine</option><option value="221">United Arab Emirates</option><option value="222">United Kingdom</option><option value="223">United States</option><option value="224">Outlying Islands</option><option value="225">Uruguay</option><option value="226">Uzbekistan</option><option value="227">Vanuatu</option><option value="228">Vatican City State</option><option value="229">Venezuela</option><option value="230">Viet Nam</option><option value="231">Virgin Islands (British)</option><option value="232">Virgin Islands (U.S.)</option><option value="233">Wallis and Futuna Islands</option><option value="234">Western Sahara</option><option value="235">Yemen</option><option value="236">Yugoslavia</option><option value="237">Zaire</option><option value="238">Zambia</option><option value="239">Zimbabwe</option></select></td> </tr> </table> </form>
En el cual si nos fijamos podemos ver un link que al pulsarlo utiliza el evento «onclick» para llamar a la función «copy_address()» que es la que se encarga de hacer las asignaciones necesarias.
Lo puedes ver todo más claro ejecutando el ejemplo en funcionamiento.
Gracias por el aporte y gracias por la respuesta de antemano, un saludo
En caso de no tener el ID, como sería la línea de código para usar el NAME
Hola, en vez de usar getElementById, revisa la funcion querySelector de JavaScript
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