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What does it mean: The serializable class does not declare a static final serialVersionUID field? [d

... the serialization (additional fields, removed fields, change of field order, ...) That's not correct, and you will be unable to cite an authoriitative source for that claim. It should be changed whenever you make a change that is incompatible under the rules given in the Versioning of Seriali...
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Python - List of unique dictionaries

... note that this may alter the order of the dictionaries in the list! use OrderedDict from collections list(OrderedDict((v['id'], v) for v in L).values()) or sort the resulting list if that works better for you – gevra ...
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Progress indicator during pandas operations

... yep - you will have order(number of groups), so depending on what your bottleneck is this might make a difference – Jeff Sep 4 '13 at 1:27 ...
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Has Facebook sharer.php changed to no longer accept detailed parameters?

...is differences: The sharer URL not is same. The strings are in different order. ( Do not know if this affects ). I use this URL string: http://www.facebook.com/sharer.php?s=100&p[url]=http://www.example.com/&p[images][0]=/images/image.jpg&p[title]=Title&p[summary]=Summary In t...
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How to iterate over a JavaScript object?

... to do it "in chunks", the best is to extract the keys in an array. As the order isn't guaranteed, this is the proper way. In modern browsers, you can use let keys = Object.keys(yourobject); To be more compatible, you'd better do this : let keys = []; for (let key in yourobject) { i...
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Null coalescing in powershell

...suggestion from an anonymous user. Thanks, whoever you are! Based on the order of operations, this works in following order: The , operator creates an array of values to be tested. The -ne operator filters out any items from the array that match the specified value--in this case, null. The resu...
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Xcode: What is a target and scheme in plain language?

...ects usually relate to one another Project - Contains code and resources, etc. (You'll be used to these!) Target - Each project has one or more targets. Each target defines a list of build settings for that project Each target also defines a list of classes, resources, custom scripts etc to incl...
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Why have header files and .cpp files? [closed]

...hingElse(); // Defined in B.CPP } // B.CPP void doSomethingElse() { // Etc. } It won't compile because A.CPP has no way to know "doSomethingElse" exists... Unless there is a declaration in A.CPP, like: // A.CPP void doSomethingElse() ; // From B.CPP void doSomething() { doSomethingElse() ...
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Nginx not picking up site in sites-enabled?

...! I am trying to move my localhost to my sites-enabled folder which is in /etc/nginx/sites-enabled/default. 3 Answers ...
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Running PostgreSQL in memory only

...ils from a properties file, build target properties, environment variable, etc. It's safe to use an existing PostgreSQL instance you already have databases you care about in, so long as the user you supply to your unit tests is not a superuser, only a user with CREATEDB rights. At worst you'll crea...