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Best practices for Storyboard login screen, handling clearing of data upon logout

...controller is a Tab Bar Controller. I'm creating the login/logout process, and it's mostly working fine, but I've got a few issues. I need to know the BEST way to set all this up. ...
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Asynchronous Requests with Python requests

...was written. However, you could just replace requests with grequests below and it should work. I've left this answer as is to reflect the original question which was about using requests < v0.13.0. To do multiple tasks with async.map asynchronously you have to: Define a function for what yo...
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'Missing contentDescription attribute on image' in XML

... Follow this link for solution: Android Lint contentDescription warning Resolved this warning by setting attribute android:contentDescription for my ImageView android:contentDescription="@string/desc" Android Lint support in ADT 16 throws this warning to e...
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what is the difference between GROUP BY and ORDER BY in sql

...i think the second example on the page in the link is sufficient to understand the difference tutorialspoint.com/sql/sql-group-by.htm – nishantbhardwaj2002 Apr 29 '15 at 9:57 ...
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What is boilerplate code?

A coworker had never heard of this, and I couldn't provide a real definition. For me, it's always been an instance of 'I-know-it-when-I-see-it'. ...
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how to change namespace of entire project?

...ace namespace DemoApp with namespace MyApp. After that, build the solution and look for compile errors for unknown identifiers. Anything that fully qualified DemoApp will need to be changed to MyApp. share | ...
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Inversion of Control vs Dependency Injection

...hanged through sub-classing. DI Frameworks are designed to make use of DI and can define interfaces (or Annotations in Java) to make it easy to pass in the implementations. IoC Containers are DI frameworks that can work outside of the programming language. In some you can configure which implemen...
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How to delete a row by reference in data.table?

...estion. data.table can't delete rows by reference yet. data.table can add and delete columns by reference since it over-allocates the vector of column pointers, as you know. The plan is to do something similar for rows and allow fast insert and delete. A row delete would use memmove in C to budge u...
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add created_at and updated_at fields to mongoose schemas

Is there a way to add created_at and updated_at fields to a mongoose schema, without having to pass them in everytime new MyModel() is called? ...
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Declare and initialize a Dictionary in Typescript

...ke use of the typed dictionary by splitting your example up in declaration and initialization, like: var persons: { [id: string] : IPerson; } = {}; persons["p1"] = { firstName: "F1", lastName: "L1" }; persons["p2"] = { firstName: "F2" }; // will result in an error ...