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December 30, 2013 20:28
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JavascriptBrasil - Exemplo pegar o primeiro elemento do datalist com js.
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Exemplo DataList</title> | |
| </head> | |
| <body> | |
| <input list="browsers" id="my-input"/> | |
| <datalist id="browsers"> | |
| <option value="Chrome"> | |
| <option value="Firefox"> | |
| <option value="Internet Explorer"> | |
| <option value="Opera"> | |
| <option value="Safari"> | |
| </datalist> | |
| <script> | |
| window.addEventListener("load",function(){ | |
| var dtList = document.getElementById('browsers'), | |
| meuInput = document.getElementById("my-input"); | |
| // Meu input vai escutar os eventos de teclado | |
| meuInput.addEventListener("keydown",function(e){ | |
| // keycode 13 equivalente a tecla "Enter" | |
| if(e.keyCode == 13){ | |
| // Pego o valor do primeiro elemento da lista do datalist | |
| valorPrimeiroItem = dtList.getElementsByTagName("option")[0].value; | |
| // Coloco dentro do input o valor do primeiro item do data list | |
| meuInput.value = valorPrimeiroItem; | |
| } | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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