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Django: Get an object form the DB, or 'None' if nothing matches

... answered Jul 30 '13 at 4:37 Cesar CanassaCesar Canassa 12.1k66 gold badges5151 silver badges6363 bronze badges ...
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Dynamic variable names in Bash

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What is a NullPointerException, and how do I fix it?

...an sonar catch null pointer exceptions caused by JVM Dynamically Now Java 14 has added a new language feature to show the root cause of NullPointerException. This language feature has been part of SAP commercial JVM since 2006. The following is 2 minutes read to understand this amazing language feat...
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Changing the background drawable of the searchview widget

... +400 Intro Unfortunately there's no way to set SearchView text field style using themes, styles and inheritance in XML as you can do wit...
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Is there a git-merge --dry-run option?

... mipadimipadi 343k7777 gold badges491491 silver badges463463 bronze badges ...
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How do I check if file exists in jQuery or pure JavaScript?

... 435 With jQuery: $.ajax({ url:'http://www.example.com/somefile.ext', type:'HEAD', err...
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Automatically deleting related rows in Laravel (Eloquent ORM)

... | edited Sep 14 '18 at 22:53 Paras 7,6031717 silver badges4343 bronze badges answered Nov 20...
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What does 'synchronized' mean?

... Paolo Forgia 5,49477 gold badges3434 silver badges5555 bronze badges answered Jul 6 '09 at 7:01 Stu ThompsonStu Thom...
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How can I detect when the mouse leaves the window?

...ution below was tested on IE 8.0.6, FireFox 3.6.6, Opera 10.53, and Safari 4 on an MS Windows XP machine. First a little function from Peter-Paul Koch; cross browser event handler: function addEvent(obj, evt, fn) { if (obj.addEventListener) { obj.addEventListener(evt, fn, false); } ...
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What is the best alternative IDE to Visual Studio [closed]

... Mat NadrofskyMat Nadrofsky 7,91988 gold badges4646 silver badges7373 bronze badges 2 ...