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Should each and every table have a primary key?
...ite.
If you have a many-to-many link table, you create the primary key on all fields involved in the link. Thus you ensure that you don't have two or more records describing one link.
Besides the logical consistency issues, most RDBMS engines will benefit from including these fields in a unique in...
Lock Android phone application to Portrait mode
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Do i need to add this to all the activities to lock it ?
– Harsha M V
Jan 12 '13 at 10:43
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Cannot get to $rootScope
..." config into the global window is fine. Or having one module that defines all this stuff and then you load it in your app - eg. angular.module('config', []).constant('appRoot', '/local/js/app'); (this code would be generated by your server (you could even generate it as a JS file, rather then inli...
What is the purpose of the vshost.exe file?
...ent).
The purpose of it is mostly to make debugging launch quicker - basically there's already a process with the framework running, just ready to load your application as soon as you want it to.
See this MSDN article and this blog post for more information.
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Read XML file into XmlDocument
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I downvoted all of these because none of them worked. As it turns out, I am developing for WindowsRT, and the Compact .NET Framework has a lot of these features stripped out. Including a lot of the ones that I need... Such as XmlDocument...
How to create a GUID/UUID in Python
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Also, have a look at the shortuuid module I wrote, as it allows you to generate shorter, readable UUIDs: github.com/stochastic-technologies/shortuuid
– Stavros Korokithakis
Dec 31 '12 at 16:22
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Length of an integer in Python
...ere are some benchmarks. The len(str()) is already behind for even quite small numbers
timeit math.log10(2**8)
1000000 loops, best of 3: 746 ns per loop
timeit len(str(2**8))
1000000 loops, best of 3: 1.1 µs per loop
timeit math.log10(2**100)
1000000 loops, best of 3: 775 ns per loop
timeit len...
How to use subprocess popen Python
...value, to be filled by untrusted user supplied data. But I am prepared to call a truce on that item. My point was more that there is no reason not to use shell=True except when using untrusted input. Simply stating that shell=True is not recommended is misleading.
– Hans Then
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What do you call the -> operator in Ruby?
..."Methods, Procs, Lambdas, and Closures"), a lambda defined using -> is called lambda literal.
succ = ->(x){ x+1 }
succ.call(2)
The code is equivalent to the following one.
succ = lambda { |x| x + 1 }
succ.call(2)
Informally, I have heard it being called stabby lambda or stabby literal....
What's the best way to bundle static resources in a Go program? [closed]
I'm working on a small web application in Go that's meant to be used as a tool on a developer's machine to help debug their applications/web services. The interface to the program is a web page which includes not only the HTML, but some JavaScript (for functionality), images and CSS (for styling). I...