我的代码就像这样
config.action_mailer.smtp_settings = {
address: "smtp.gmail.com",
port: 587,
domain: Rails.application.secrets.domain_name,
authentication: "plain",
enable_starttls_auto: true,
user_name: Rails.application.secrets.email_provider_username,
password: Rails.application.secrets.email_provider_password
}
如何知道点击哪一个以及如何获取所点击元素的ID和名称?
PS:我想稍后在javascript中编写代码,因为我要把代码放到GTM变量
答案 0 :(得分:3)
使用Plain JS + html update:
NullPointerException

var info = function(dd) {
alert(dd.id + ", " + dd.name);
};

使用Plain JS:
<select id="id_1" class="editable-input" name="name_1" onclick="info(this);"></select>
<select id="id_2" class="editable-input" name="name_2" onclick="info(this);"></select>
<select id="id_3" class="editable-input" name="name_3" onclick="info(this);"></select>
&#13;
var info = function(dd) {
return function() {
alert(dd.id + ", " + dd.name);
}
};
var dds = document.getElementsByClassName("editable-input");
for (var i = 0, l = dds.length; l > i; i++)
dds[i].onclick = info(dds[i]);
&#13;
使用jQuery:
<select id="id_1" class="editable-input" name="name_1"></select>
<select id="id_2" class="editable-input" name="name_2"></select>
<select id="id_3" class="editable-input" name="name_3"></select>
&#13;
$(function() {
$('select.editable-input').on('click', function(e) {
alert(this.id + ", " + this.name);
});
});
&#13;
答案 1 :(得分:2)
如果您使用的是jQuery,则可以使用以下命令:
$(".editable-input").on("click", function(e) {
var sender = $(this);
console.log(sender.prop("id"));
//OR
console.log(this.id);
});
如果您使用的是JavaScript:
var items = document.getElementsByClassName("example"),
currentItem;
for(var i = items.length; i--;) {
currentItem = items[i];
currentItem.onclick = function(e) {
console.log(this.id);
};
}
答案 2 :(得分:2)
有一些方法可以做到这一点,但最好的方法是将一个单独的事件委托给你孩子的父母。
var div = document.getElementById("parent");
div.addEventListener("click", function(e) {
var el = e.target;
// here you can get el.id and el.name and do whatever you want
if (el.tagName.toLowerCase() === "select")
alert(el.id);
});
<div id="parent">
<select id="id_1" class="editable-input" name="name_1"></select>
<select id="id_2" class="editable-input" name="name_2"></select>
<select id="id_3" class="editable-input" name="name_3"></select>
</div>
这样做,您只创建一个可以处理div中所有孩子的事件。因此,您将使用更少的内存,即使您创建了另一个<select>
,它也会将事件委托给它。
Know more about event delegation
如果您不喜欢这种方法,您可以随时使用传统方法:
var sels = document.querySelecorAll(".editable-content");
for (var i = 0; i < sels.length; i++) {
sels[i].addEventListener("click", function(e) {
var el = e.target;
// here you can get el.id and el.name and do whatever you want
});
}