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Remove duplicated rows

...e columns. I would like to remove rows that are duplicates in that column. For example: 11 Answers ...
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How do you change text to bold in Android?

... For case where you are using custom fonts, but do not have bold typeface for the font you can use: myTextView.setText(Html.fromHtml("<b>" + myText + "</b>"); ...
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Capture key press (or keydown) event on DIV element

...e.log(event.keyCode); switch(event.keyCode){ //....your actions for the keys ..... } }); To set the focus on start: $(function() { $('#mydiv').focus(); }); To remove - if you don't like it - the div focus border, set outline: none in the CSS. See the table of keycodes for mo...
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What's the difference between equal?, eql?, ===, and ==?

...great explanations. I encourage you to read it, and also the documentation for these methods as they're overridden in other classes, like String. Side note: if you want to try these out for yourself on different objects, use something like this: class Object def all_equals(o) ops = [:==, :===,...
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How to change the color of a CheckBox?

.../tint_color" /> In this case if you want to subclass a CheckBox don't forget to use AppCompatCheckBox instead. PREVIOUS ANSWER: You can change CheckBoxs drawable using android:button="@drawable/your_check_drawable" attribute. ...
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Why is SELECT * considered harmful?

... Consider a scenario where you want to tune a query to a high level of performance. If you were to use *, and it returned more columns than you actually needed, the server would often have to perform more expensive methods to retrieve your data than it otherwise might. For example, you wouldn't b...
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Why is using the rails default_scope often recommend against?

...ntion that using the rails default_scope is a bad idea, and the top hits for default_scope on stackoverflow are about how to overwrite it. This feels messed up, and merits an explicit question (I think). ...
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MQTT物联网协议完全实践指南 · App Inventor 2 中文网

...o current milliseconds set Label_LastUpdate.Text to "最后更新: " & formatDateTime(LastUpdateTime) // 温度数据处理 procedure handleTemperatureData data do set Temperature to getNumber data.temperature set SensorID to getText data.sensor_id set Timestamp to getNumber data.ti...
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How exactly to use Notification.Builder

I found that I am using a deprecated method for noficitations (notification.setLatestEventInfo()) 11 Answers ...
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JavaScript - Getting HTML form values

How can I get the value of an HTML form to pass to JavaScript? 12 Answers 12 ...