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Advantages and disadvantages of GUID / UUID database keys

...ses would have been made a lot easier if all the database keys had been GUID / UUID values. I've considered going down this path a few times, but there's always a bit of uncertainty, especially around performance and un-read-out-over-the-phone-able URLs. ...
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Memory management in Qt?

...I need to delete and/or destroy my objects? Is any of this handled automatically? 4 Answers ...
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Why does Twitter Bootstrap Use Pixels for Font Size?

...ys, so it's not an issue with type scaling or anything. Nesting ems historically has been a pain and can require extra math for figure computed/intended pixel values. Mixing units of measurements is ugly and my inner OCD hates it. Using units on line-height is generally discouraged, but provides imm...
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Best practices for copying files with Maven

...sition, they are not. Use the copy task if you need to perform some unavoidable one-off customization: <project> [...] <build> <plugins> [...] <plugin> <artifactId>maven-antrun-plugin</artifactId> <executions> ...
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How do I put a border around an Android textview?

...hape drawable (a rectangle) as background for the view. <TextView android:text="Some text" android:background="@drawable/back"/> And rectangle drawable back.xml (put into res/drawable folder): <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" &g...
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Should I put input elements inside a label element?

... <label for="lastname">Last Name</label> <input type="text" id="lastname" /> or <input type="text" id="lastname" /> <label for="lastname">Last Name</label> or <label> <input type="text" name="lastname" /> Last Name </label&...
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SVG gradient using CSS

... shape-rendering: crispEdges; fill: url(#MyGradient); } <svg width="100" height="50" version="1.1" xmlns="http://www.w3.org/2000/svg"> <style type="text/css"> rect{fill:url(#MyGradient)} </style> <defs> <linearGradient id="M...
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How to convert index of a pandas dataframe into a column?

...,4)), columns=list('abcd')) The reset_index method, called with the default parameters, converts all index levels to columns and uses a simple RangeIndex as new index. df.reset_index() Use the level parameter to control which index levels are converted into columns. If po...
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Getting the location from an IP address [duplicate]

...good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, and MySQL for the database. ...
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How to change the text of a label?

... ASP.Net automatically generates unique client IDs for server-side controls. Change it to $('#<%= lblVessel.ClientID %>') In ASP.Net 4.0, you could also set the ClientIDMode property to Static instead. ...