[英]How to bind data from backend into frontend at select option angular 9
[英]how to bind array data to select option
我有數組數據它稱為“provinsi”我在控制台上像普通數組一樣得到數組
這是我的代碼
<select id="select">
<option value="default">default</option>
</select>
<script>
console.log(provinsi)
var select = document.getElementById("select");
for(var i = 0; i < provinsi.length; i++)
{
var option = document.createElement("option"),
txt = document.createTextNode(provinsi[i]);
option.appendChild(txt);
option.setAttribute("value",provinsi[i]);
select.insertBefore(option,select.lastChild);
}
</script>
我相信DOM尚未准備好。
嘗試將代碼放入IIFE中。
(function() {
// the DOM will be available here
console.log(provinsi)
var select = document.getElementById("select");
for(var i = 0; i < provinsi.length; i++)
{
var option = document.createElement("option"),
txt = document.createTextNode(provinsi[i]);
option.appendChild(txt);
option.setAttribute("value",provinsi[i]);
select.insertBefore(option,select.lastChild);
}
})();
**只是為了澄清@karthick所提到的內容,請確保將腳本加載在body標簽的末尾。
我希望這能使編碼愉快:)注意:使用原始值更改省份數組
$(document).ready(()=> { let provinces = ["test1", "test2", "test3", "test4" ] $.each(provinces, function(key,item) { $("#select").append(new Option(item, key)); }); })
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <select id="select"> <option value="default">default</option> </select>
運行腳本時,DOM可能尚未完成加載。 您應該在DOMContentLoaded
上運行函數。
<select id="select"> <option value="default">default</option> </select> <script> var provinsi = ["test1", "test2"]; document.addEventListener("DOMContentLoaded", function(event) { //DOM fully loaded and parsed var select = document.getElementById("select"); for(var i = 0; i < provinsi.length; i++) { var option = document.createElement("option"), txt = document.createTextNode(provinsi[i]); option.appendChild(txt); option.setAttribute("value",provinsi[i]); select.insertBefore(option,select.lastChild); } }); </script> <script> </script>
您可以使用jquery each
函數進行looping
Javascript代碼:
var makers = [
{id: 1, name: 'Toyota'},
{id: 2, name: 'Nissan'},
{id: 3, name: 'Honda'}
]
$.each(makers, function (index, item) {
$('#makers-listing').append(`<option value="${item.id}">${item.name}</option>`);
});
html代碼:
<select id="makers-listing">
<option>Select Maker</option> <!-- This is default value -->
</select>
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