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Difference between $(this) and event.target?

... used with jQuery methods, use $( this ). If we have <input type="button" class="btn" value ="btn1"> <input type="button" class="btn" value ="btn2"> <input type="button" class="btn" value ="btn3"> <div id="outer"> <input type="button" value ="OuterB" id ="Outer...
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Is it possible to cache POST methods in HTTP?

...rt(text) } </script> </head> <body> <button onclick="getRequest()">Trigger GET request</button> <br /> <button onclick="postRequest('trigger1')">Trigger POST request (body 1)</button> <br /> <button onclick="po...
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AVD Manager - Cannot Create Android Virtual Device

...Android Virtual Device (AVD)" window. The problem is, I can't get the "OK" button to not be greyed out. I choose Nexus 7 from "Device", I give the AVD a name, I choose "Android 4.2 API Level 17" as the target. And no matter what I do for the rest of the settings, the "OK" button continues to be grey...
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AngularJS: disabling all form controls between submit and server response

...ction) during a period of time when user clicks sort of "Save" or "Submit" button and data travelling over the wire. I don't want to use JQuery (which is evil!!!) and query all elements as array (by class or attribute marker) The ideas I had so far are: ...
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How can I check if a checkbox is checked?

..." id="check"> <a href="#" onclick="check()">click</a> <button onclick="check()">button</button> <script> function check() { if (document.getElementById('check').checked) { alert("checked"); } else { alert("Not checked.")...
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App Inventor 2 数据可视化教程 - 折线图/曲线图/实时数据绘图 · App Inventor 2 中文网

..., 标签: 温度, 线型: 曲线) ├── 水平布局2 │ ├── Button_开始 (文本: "开始监测") │ └── Button_停止 (文本: "停止监测") └── 计时器1 (计时间隔: 1000, 启用计时: false) 11.3 积木块 // ========== 全局变量 =...
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PHP Pass variable to next page

...ype="hidden" name="text" value="<?php echo $myVariable; ?>"> <button type="submit">Submit</button> </form> pass php variable to hidden field value so you can access this variable into another page page2.php <?php $text=$_POST['text']; echo $text; ?> ...
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AsyncTask Android example

....provider.Settings.System; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.view.View.OnClickListener; public class AsyncTaskActivity extends Activity implements OnClickListener { Button btn; AsyncTask<?, ?, ?> runningTask; @...
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Set custom HTML5 required field validation message

...ks @Leia for completing this answer. Unfortunately does not work for radio buttons. i.e if you trigger the invalid on one button, the custom string is added. Then if you click a different radio button, it will not clear the cutomValidity string on the first one. So looks like some javascript would b...
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What is the HTML tabindex attribute?

... When the user presses the tab button the user will be taken through the form in the order 1, 2, and 3 as indicated in the example below. For example: Name: <input name="name" tabindex="1" /> Age: <input name="age" tabindex="3" /> Email: &l...