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How do I convert a Ruby class name to a underscore-delimited symbol?

...ow can I programmatically turn a class name, FooBar , into a symbol, :foo_bar ? e.g. something like this, but that handles camel case properly? ...
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Python - When to use file vs open

...bove natively support the with statement. In Python 2.5, you must add from __future__ import with_statement to the top of your code. – IceArdor Jul 14 '14 at 20:40 ...
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How to concatenate strings in django templates?

... Use with: {% with "shop/"|add:shop_name|add:"/base.html" as template %} {% include template %} {% endwith %} share | improve this answer | ...
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How to rename a single column in a data.frame?

...nswered May 10 '13 at 20:33 Side_0o_EffectSide_0o_Effect 5,97122 gold badges99 silver badges44 bronze badges ...
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Email address validation using ASP.NET MVC data type attributes

...Expression Attribute, something like this: [RegularExpression("^[a-zA-Z0-9_\\.-]+@([a-zA-Z0-9-]+\\.)+[a-zA-Z]{2,6}$", ErrorMessage = "E-mail is not valid")] And don't delete [Required] because [RegularExpression] doesn't affect empty fields. ...
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What is this 'Lambda' everyone keeps speaking of?

...nsive operations to get a user. Ajax for example users[name] = user_from_ajax; } return users[name]; }; Later on, we may notice that we have a similar function: var photos = []; var getPhoto = function (name) { if (! photo[name]) { // expensive operations to get a use...
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range over interface{} which stores a slice

...t interface{}) { switch t := t.(type) { case []string: for _, value := range t { fmt.Println(value) } case []int: for _, value := range t { fmt.Println(value) } } } Check out the code on the playground. ...
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How can I test a Windows DLL file to determine if it is 32 bit or 64 bit? [duplicate]

...at for an overview. You need to read the MS-DOS header, then read the IMAGE_NT_HEADERS structure. This contains the IMAGE_FILE_HEADER structure which contains the info you need in the Machine member which contains one of the following values IMAGE_FILE_MACHINE_I386 (0x014c) IMAGE_FILE_MACHINE_IA64...
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“Variable” variables in Javascript?

...you can either try using eval(): var data = "testVariable"; eval("var temp_" + data + "=123;"); alert(temp_testVariable); Or using the window object: var data = "testVariable"; window["temp_" + data] = 123; alert(window["temp_" + data]); http://www.hiteshagrawal.com/javascript/dynamic-variable...
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How to force NSLocalizedString to use a specific language

...; @end Implementation #import <objc/runtime.h> static const char _bundle=0; @interface BundleEx : NSBundle @end @implementation BundleEx -(NSString*)localizedStringForKey:(NSString *)key value:(NSString *)value table:(NSString *)tableName { NSBundle* bundle=objc_getAssociatedObject(s...