What is the best way to add options to a select from as a JS object with jQuery?
What is the best method for adding options to a <select> from a JavaScript object using jQuery?
I'm looking for something that I don't need a plugin to do, but I would also be interested in the plugins that are out there.
This is what I did:
selectValues = { "1": "test 1", "2": "test 2" };
for (key in selectValues) {
if (typeof (selectValues[key] == 'string') {
$('#mySelect').append('<option value="' + key + '">' + selectValues[key] + '</option>');
}
}
A clean/simple solution:
This is a cleaned up and simplified version of matdumsa's:
$.each(selectValues, function(key, value) {
$('#mySelect')
.append($('<option>', { value : key })
.text(value));
});
Changes from matdumsa's: (1) removed the close tag for the option inside append() and (2) moved the properties/attributes into an map as the second parameter of append().
与其他答案一样，使用jQuery时尚：
$.each(selectValues, function(key, value) {
$('#mySelect')
.append($("<option></option>")
.attr("value",key)
.text(value));
});
var output = [];
$.each(selectValues, function(key, value)
{
output.push('<option value="'+ key +'">'+ value +'</option>');
});
$('#mySelect').html(output.join(''));
In this way you "touch the DOM" only one time.
I'm not sure if the latest line can be converted into $('#mySelect').html(output.join('')) because I don't know jQuery internals (maybe it does some parsing in the html() method)
这是更快，更干净。
$.each(selectValues, function(key, value) {
$('#mySelect').append($("<option/>", {
value: key,
text: value
}));
});
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