Question

这是我之前关于下拉菜单的问题的跟进：list options

我以前没有意识到这一点，但除了下拉菜单外，还有几个单选按钮，我想要获取单选按钮的文本，值和标签。

var html = '<table cellpadding=2 cellspacing=2 class="table table-striped"><tr><td class=registration-form>Is the patient enrolled in a VDOT research protocol?*<td><span id=cphBody_surveyControll_surveyWizard_S0100100 class="radio inline control-group" maintainscrollpositiononpostback=true><input id=cphBody_surveyControll_surveyWizard_S0100100_0 type=radio name=ctl00$cphBody$surveyControll$surveyWizard$S0100100 value=1 checked><label for=cphBody_surveyControll_surveyWizard_S0100100_0>Yes&nbsp</label><input id=cphBody_surveyControll_surveyWizard_S0100100_1 type=radio name=ctl00$cphBody$surveyControll$surveyWizard$S0100100 value=0 onclick="setTimeout(&#39;__doPostBack(\&#39;ctl00$cphBody$surveyControll$surveyWizard$S0100100$1\&#39;,\&#39;\&#39;)&#39;, 0)"><label for=cphBody_surveyControll_surveyWizard_S0100100_1>No</label></span> <span id=cphBody_surveyControll_surveyWizard_rfvS0100100 class=text-error style=display:none>required</span><tr id=cphBody_surveyControll_surveyWizard_ShowS0100200><td class=registration-form>Informed Consent signed?*<td><span id=cphBody_surveyControll_surveyWizard_S0100200 class="radio inline control-group"><input id=cphBody_surveyControll_surveyWizard_S0100200_0 type=radio name=ctl00$cphBody$surveyControll$surveyWizard$S0100200 value=1 checked><label for=cphBody_surveyControll_surveyWizard_S0100200_0>Yes &nbsp</label><input id=cphBody_surveyControll_surveyWizard_S0100200_1 type=radio name=ctl00$cphBody$surveyControll$surveyWizard$S0100200 value="0"><label for=cphBody_surveyControll_surveyWizard_S0100200_1>No</label></span> <span id=cphBody_surveyControll_surveyWizard_rfvS0100200 class=text-error style=display:none>required</span></table>';

$(function () {
    var tmpHTML = $(html);
    var vals = [];
    //get all existing SELECT menus
    tmpHTML.find("select").each(function (index, itm) {
        var opts = [];

        //loop through each of the menu's options
        $(this).find(":radio").each(function (i, opt) {
            if (opt.text !== '') {
                opts.push({
                    value: opt.val,
                    text: opt.text
                });
            }
        });

        //push the menu along with its options into an array
        vals.push({
            id: itm.id,
            options: opts
        });
    });
    console.log(vals);
});

在此处更改代码：DEMO并插入HTML（下方）作为var html，并将两个finds更改为span和{{1}给了我所有未定义的数组

label

Answer 1

根据this中的单选按钮，您可以使用this.value或$(this).val()获取其值。您可以通过以下方式获取相关标签的文本：

$(this).closest("label").add($("label[for='" + this.id + "']")).text()

这显示了如何在数组中获取所有这些内容：

$(function () {
    var tmpHTML = $(html);
    var vals = [];
    //get all existing SELECT menus
    tmpHTML.find(":radio").each(function () {
        vals.push({
            value: this.value,
            text: $(this).closest("label").add($("label[for='" + this.id + "']")).text()
        });
    });
    console.log(vals);
});

如何使用jQuery

1 个答案: