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What does new self(); mean in PHP?

... self points to the class in which it is written. So, if your getInstance method is in a class name MyClass, the following line : self::$_instance = new self(); Will do the same as : self::$_instance = new MyClass(); Edit : a couple more information...
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AngularJS- Login and Authentication in each route and controller

.../home'); } }); }]); You should create a service (I will name it Auth) which will handle the user object and have a method to know if the user is logged or not. service: .factory('Auth', function(){ var user; return{ setUser : function(aUser){ user = aUser; }, i...
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Test if a string contains any of the strings from an array

How do I test a string to see if it contains any of the strings from an array? 14 Answers ...
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Calculate relative time in C#

... Jeff, your code is nice but could be clearer with constants (as suggested in Code Complete). const int SECOND = 1; const int MINUTE = 60 * SECOND; const int HOUR = 60 * MINUTE; const int DAY = 24 * HOUR; const int MONTH = 30 * DAY; var ts = new TimeSpan(DateTime.UtcNow...
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Why do we need message brokers like RabbitMQ over a database like PostgreSQL?

I am new to message brokers like RabbitMQ which we can use to create tasks / message queues for a scheduling system like Celery . ...
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How to determine if a process runs inside lxc/Docker?

... The most reliable way is to check /proc/1/cgroup. It will tell you the control groups of the init process, and when you are not in a container, that will be / for all hierarchies. When you are inside a container, you will see the name of the anchor point. With LXC/Docker con...
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LogCat message: The Google Play services resources were not found. Check your project configuration

...lay-services_lib library project to my workspace and added a reference to it from my application project, following the instructions on these pages: ...
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How do you find out the caller function in JavaScript?

... This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future. The following is the old answer from 200...
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Possible heap pollution via varargs parameter

I understand this occurs with Java 7 when using varargs with a generic type; 5 Answers ...
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How do I get PyLint to recognize numpy members?

... If using Visual Studio Code with Don Jayamanne's excellent Python extension, add a user setting to whitelist numpy: { // whitelist numpy to remove lint errors "python.linting.pylintArgs": [ "--extension-pkg-whitelist=numpy" ] } ...