这将把#myselectbox的选项值放入一个整洁的数组中:

// First, get the elements into a list
var options = $('#myselectbox option');

// Next, translate that into an array of just the values
var values = $.map(options, e => $(e).val())

    var arr = [], option='';
$('select#idunit').find('option').each(function(index) {
arr.push ([$(this).val(),$(this).text()]);
//option = '<option '+ ((result[0].idunit==arr[index][0])?'selected':'') +'  value="'+arr[index][0]+'">'+arr[index][1]+'</option>';
            });
console.log(arr);
//$('select#idunit').empty();
//$('select#idunit').html(option);

你可以使用以下代码:

var assignedRoleId = new Array();
$('#RolesListAssigned option').each(function(){
    assignedRoleId.push(this.value);
});

这是一个简单的例子在jquery中获得所有的值，文本，或所选项目的值，或所选项目的文本

$('#nCS1 > option').each((index, obj) => {
   console.log($(obj).val());
})

printOptionValues = () => { $('#nCS1 > option').each((index, obj) => { console.log($(obj).val()); }) } printOptionTexts = () => { $('#nCS1 > option').each((index, obj) => { console.log($(obj).text()); }) } printSelectedItemText = () => { console.log($('#nCS1 option:selected').text()); } printSelectedItemValue = () => { console.log($('#nCS1 option:selected').val()); } <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <select size="1" id="nCS1" name="nCS1" class="form-control" > <option value="22">Australia</option> <option value="23">Brunei</option> <option value="33">Cambodia</option> <option value="32">Canada</option> <option value="27">Dubai</option> <option value="28">Indonesia</option> <option value="25">Malaysia</option> </select> <br/> <input type='button' onclick='printOptionValues()' value='print option values' /> <br/> <input type='button' onclick='printOptionTexts()' value='print option texts' /> <br/> <input type='button' onclick='printSelectedItemText()' value='print selected option text'/> <br/> <input type='button' onclick='printSelectedItemValue()' value='print selected option value' />

这是一种生成逗号分隔值列表的非常简单的方法。

var values = "";

$('#sel-box option').each(function () { 
   values = values + $(this).val() + ";";
});

没有jQuery 我知道HTMLSelectElement元素包含一个选项属性，这是一个htmlloptionscollection。

const myOpts = document.getElementById('yourselect').options;
console.log(myOpts[0].value) //=> Value of the first option

一个12岁的答案。让我们对它进行一些改进(使用. queryselectorall，将结果HTMLOptionsCollection扩展到Array并映射值)。

// helper to retrieve an array of elements using a css selector const nodes = selector => [...document.querySelectorAll(selector)]; const results = { pojs: nodes(`#demo option`).map(o => o.value), jq: $(`#demo option`).toArray().map( o => o.value ), } console.log( `pojs: [${results.pojs.slice(0, 5)}]` ); console.log( `jq: [${results.jq.slice(0, 5)}]` ); <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <select id="demo"> <option value="Belgium">Belgium</option> <option value="Botswana">Botswana</option> <option value="Burkina Faso">Burkina Faso</option> <option value="Burundi">Burundi</option> <option value="China">China</option> <option value="France">France</option> <option value="Germany">Germany</option> <option value="India">India</option> <option value="Japan">Japan</option> <option value="Malaysia">Malaysia</option> <option value="Mali">Mali</option> <option value="Namibia">Namibia</option> <option value="Netherlands">Netherlands</option> <option value="North Korea">North Korea</option> <option value="South Korea">South Korea</option> <option value="Spain">Spain</option> <option value="Sweden">Sweden</option> <option value="Uzbekistan">Uzbekistan</option> <option value="Zimbabwe">Zimbabwe</option> </select>