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Posting a File and Associated Data to a RESTful WebService preferably as JSON
This is probably going to be a stupid question but I'm having one of those nights. In an application I am developing RESTful API and we want the client to send data as JSON. Part of this application requires the client to upload a file (usually an image) as well as information about the image.
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How to clone a Date object?
...variable to another one will copy the reference to the same instance. This means that changing one will change the other.
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What does the 'static' keyword do in a class?
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static members belong to the class instead of a specific instance.
It means that only one instance of a static field exists[1] even if you create a million instances of the class or you don't create any. It will be shared by all instances.
Since static methods also do not belong to a specific ...
How do I convert a hexadecimal color to rgba with the Less compiler?
...led fade. You pass a color object and the absolute opacity % (higher value means less transparent):
fade(@color, 50%); // Return @color with 50% opacity in rgba
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ASP.NET MVC passing an ID in an ActionLink to the controller
I can't see to retrieve an ID I'm sending in a html.ActionLink in my controller, here is what I'm trying to do
5 Answers
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.gitignore file, where should I put it in my xcode project?
...pository. The rules specified under this file will not be
committed, which means it will not be shared with others. Generally this approach useful to prevent committing of locally generated files. For example, for files created by your editor.
Per path git ignore: - In this case your custom rules wi...
How do I add a foreign key to an existing SQLite table?
...child ADD CONSTRAINT fk_child_parent
FOREIGN KEY (parent_id)
REFERENCES parent(id);
SQLite doesn't support the ADD CONSTRAINT variant of the ALTER TABLE command (sqlite.org: SQL Features That SQLite Does Not Implement).
Therefore, the only way to add a foreig...
What's valid and what's not in a URI query?
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That a character is reserved within a generic URL component doesn't mean it must be escaped when it appears within the component or within data in the component. The character must also be defined as a delimiter within the generic or scheme-specific syntax and the appearance of the character ...
Sort Go map values by keys
...are decoupled from the moment the for loop over the map range is finished. Meaning that, if the map gets modified after the sorting logic, but before you use it, you can get into trouble. (Not thread / Go routine safe). If there is a change of parallel Map write access, you'll need to use a mutex ar...
find vs find_by vs where
...its your needs best.
The find method is usually used to retrieve a row by ID:
Model.find(1)
It's worth noting that find will throw an exception if the item is not found by the attribute that you supply. Use where (as described below, which will return an empty array if the attribute is not foun...