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Update R using RStudio
How can I update R via RStudio?
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Why is it important to override GetHashCode when Equals method is overridden?
...it is important if your item will be used as a key in a dictionary, or HashSet<T>, etc - since this is used (in the absence of a custom IEqualityComparer<T>) to group items into buckets. If the hash-code for two items does not match, they may never be considered equal (Equals will simply...
How do I access the request object or any other variable in a form's clean() method?
...e the above comments, this method works whereas the other method does not. Setting an attribute of the form object in init does not reliably carry over to clean methods, whereas setting the thread locals does allow this data to be carried over.
– rplevy
Oct 21 ...
Detect whether there is an Internet connection available on Android [duplicate]
...ble, this is true. Sometimes (for example, when 'Restrict background data' setting is enabled) isConnected can be false to mean that the interface has no active connection but isAvailable is true to mean the interface is available and you can establish a connection (for example, to transmit foregrou...
Testing modules in rspec
What are the best practices on testing modules in rspec? I have some modules that get included in few models and for now I simply have duplicate tests for each model (with few differences). Is there a way to DRY it up?
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What's the fastest way to read a text file line-by-line?
... StreamReader.ReadLine
This is basically your method. For some reason you set the buffer size to the smallest possible value (128). Increasing this will in general increase performance. The default size is 1,024 and other good choices are 512 (the sector size in Windows) or 4,096 (the cluster size ...
How do you create a read-only user in PostgreSQL?
...les) created by the user that issued this command: although it can also be set on any role that the issuing user is a member of. However, you don't pick up default privileges for all roles you're a member of when creating new objects... so there's still some faffing around. If you adopt the approach...
Displaying the Indian currency symbol on a website
...-webfont.eot');
src: local('☺'), url(data:font/truetype;charset=utf-8;base64,AAEAAAANAIAAAwBQRkZUTVen5G0AAADcAAAAHEdERUYAQAAEAAAA+AAAACBPUy8yRQixzQAAARgAAABgY21hcGmyCE0AAAF4AAABamdhc3D//wADAAAC5AAAAAhnbHlmmuFTtAAAAuwAABAoaGVhZPOmAG0AABMUAAAANmhoZWELSAQOAAATTAAAACRobXR4KSwAAAAAE3AAAABM...
Do I need to convert .CER to .CRT for Apache SSL certificates? If so, how?
I need to setup an Apache 2 server with SSL.
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Is there a tool to convert JavaScript files to TypeScript [closed]
Now TypeScript came out, it is an exciting news for me, but how can I convert all the existing JavaScript files to TypeScript.
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