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Should I use 'has_key()' or 'in' on Python dicts?

...ng, I didn't see that. I suppose it's because x in d.keys() must construct and destroy a temporary object, complete with the memory allocation that entails, where x in d.keys() is just doing an arithmetic operation (computing the hash) and doing a lookup. Note that d.keys() is only about 10 times as...
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Quickest way to convert a base 10 number to any base in .NET?

I have and old(ish) C# method I wrote that takes a number and converts it to any base: 12 Answers ...
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ASP.NET MVC - TempData - Good or bad practice

... I kind of think of temp data as being a fire-and-forget mechanism for notifying the user. Its great to give them a reminder of something they recently did, but I'd also be hesitant to make it a required step in some user process. The reason being if they refresh the p...
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What is the id( ) function used for?

I read the Python 2 docs and noticed the id() function: 13 Answers 13 ...
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Passing an array by reference

... It's not right to left, it's inside out, and [] binds tighter than &. – philipxy May 6 '17 at 3:10 add a comment  |  ...
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How do I set the size of Emacs' window?

I'm trying to detect the size of the screen I'm starting emacs on, and adjust the size and position the window it is starting in (I guess that's the frame in emacs-speak) accordingly. I'm trying to set up my .emacs so that I always get a "reasonably-big" window with it's top-left corner near the top...
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What is the maximum length of a table name in Oracle?

What are the maximum length of a table name and column name in Oracle? 12 Answers 12 ...
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Can I apply the required attribute to fields in HTML5?

... Mandatory: Have the first value empty - required works on empty values Prerequisites: correct html5 DOCTYPE and a named input field <select name="somename" required> <option value="">Please select</option&g...
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Could not find com.google.android.gms:play-services:3.1.59 3.2.25 4.0.30 4.1.32 4.2.40 4.2.42 4.3.23

...a reference in the first place stopped working: https://plus.google.com/+AndroidDevelopers/posts/4Yhpn6p9icf 12 Answers ...
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Serialize form data to JSON [duplicate]

...the same name. You should check if indexed_array[n['name']] already exists and if it convert it to array and add the n['value'] there. Of course you also need to check if indexed_array[n['name']] is already an array. – Strix May 22 '13 at 22:13 ...