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Remove ActiveRecord in Rails 3
...app I have just started work on in Rails 3 beta, both to get a feel for it and get a bit of a head-start. The app uses MongoDB and MongoMapper for all of its models and therefore has no need for ActiveRecord. In the previous version, I am unloading activerecord in the following way:
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UILabel with text of two different colors
...g = [[NSMutableAttributedString alloc] initWithString:@"Here is a red blue and green text"];
[string setColorForText:@"red" withColor:[UIColor redColor]];
[string setColorForText:@"blue" withColor:[UIColor blueColor]];
[string setColorForText:@"green" withColor:[UIColor greenColor]];
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Is it safe to parse a /proc/ file?
...o even this tiny, trivial file was subject to a race condition until then, and still is in most enterprise kernels. See fs/proc/uptime.c for the current source, or the commit that made it atomic. On a pre-2.6.30 kernel, you can open the file, read a bit of it, then if you later come back and read ...
How do I check if a variable exists in a list in BASH
...amp; echo 'yes' || echo 'no'. it's correct assuming space is the separator and $x doesn't contain space
– Tianren Liu
Apr 5 '16 at 21:47
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Can C++ code be valid in both C++03 and C++11 but do different things?
Is it possible for C++ code to conform to both the C++03 standard and the C++11 standard, but do different things depending on under which standard it is being compiled?
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Eclipse does not highlight matching variables
...gt; Text Editors > Annotations
Compare the settings for 'Occurrences' and 'Write Occurrences'
Make sure that you don't have the 'Text as higlighted' option checked for one of them.
This should fix it.
share
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Extract a dplyr tbl column as a vector
... a neat function to make pulling out a column a bit nicer (easier to type, and easier to read):
pull <- function(x,y) {x[,if(is.name(substitute(y))) deparse(substitute(y)) else y, drop = FALSE][[1]]}
This lets you do either of these:
iris2 %>% pull('Species')
iris2 %>% pull(Species)
iri...
Need to reset git branch to origin version
...n (github). Is there an easy way to do this? I tried deleting the branch and then resetting up the tracking branch, but it just gives me the version I was working on again.
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POSTing JsonObject With HttpClient From Web API
... using HttpClient from Web API. I'm not quite sure how to go about this and can't find much in the way of sample code.
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Windows recursive grep command-line
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findstr can do recursive searches (/S) and supports some variant of regex syntax (/R).
C:\>findstr /?
Searches for strings in files.
FINDSTR [/B] [/E] [/L] [/R] [/S] [/I] [/X] [/V] [/N] [/M] [/O] [/P] [/F:file]
[/C:string] [/G:file] [/D:dir list] [/A...