Sometimes it is necessary to read information from the configuration file and then add it to the user's options, such as the option option of select. This article mainly shares a method of using js to dynamically add options to datalist or select, which has many advantages. Good reference value, I hope it will be helpful to everyone. Let’s follow the editor to take a look, I hope it can help everyone.
The following is an example for this kind of situation
The content is as follows:
<!DOCTYPE html>
<html>
<head>
<title>鼠标点击时加载</title>
<script type="text/javascript" src="jquery-1.8.3.js"></script>
</head>
<body>
选择城市:<input type="text" name="cname" list="cities"/><br/>
<datalist id="cities">
</datalist>
</body>
</html>
<script type="text/javascript">
//需要添加的数据内容,可以通过ajax请求获取
var cities = [
{label:"xian",value:"西安"},
{label:"hubei",value:"湖北"},
{label:"wuhai",value:"武汉"}
];
//获取datalist的dom
var ss = document.getElementById("cities");
//定义加载城市的函数
function loadcities(){
for(var i = 0;i < cities.length; i ++){
var city = cities[i];
//纯js实现的方式
/*var op=document.createElement("option");
op.setAttribute("label",city.label);
op.setAttribute("value",city.value);
ss.appendChild(op);*/
//jquery实现的方式
$("#cities").append('<option label="'+city.label+'" value="'+city.value+'"></option>');
}
}
//页面加载完时加载此函数
window.onload = function(){
loadcities();
}
</script>Related recommendations:
How to dynamically add option to control select_html/css_WEB-ITnose
jquery dynamically add option example_jquery
js method of adding options to selected_javascript skills
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