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How can I include a YAML file inside another?
So I have two YAML files, "A" and "B" and I want the contents of A to be inserted inside B, either spliced into the existing data structure, like an array, or as a child of an element, like the value for a certain hash key.
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Why is it slower to iterate over a small string than a small list?
...n over a small string took longer than doing the same operation on a list of small single character strings. Any explanation? It's almost 1.35 times as much time.
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Annotating text on individual facet in ggplot2
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Typically you'd do something like this:
ann_text <- data.frame(mpg = 15,wt = 5,lab = "Text",
cyl = factor(8,levels = c("4","6","8")))
p + geom_text(data = ann_text,label = "Text")
It should work without specifying the factor variable comple...
Printing a variable memory address in swift
... var aString : String = "THIS IS A STRING"
NSLog("%p", aString.core._baseAddress) // _baseAddress is a COpaquePointer
// example printed address 0x100006db0
This prints the memory address of the string, if you open XCode -> Debug Workflow -> View Memory and go to the printed addre...
How to get a password from a shell script without echoing
...ead -s password
echo
# Run Command
echo $password
The read -s will turn off echo for you. Just replace the echo on the last line with the command you want to run.
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ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...elasticsearch recently and played with whoosh (a Python implementation of a search engine).
9 Answers
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How can I debug git/git-shell related problems?
How can I have some debug information regarding git/git-shell?
8 Answers
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Can two different strings generate the same MD5 hash code?
For each of our binary assets we generate a MD5 hash. This is used to check whether a certain binary asset is already in our application. But is it possible that two different binary assets generate the same MD5 hash. So is it possible that two different strings generate the same MD5 hash?
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Launching Google Maps Directions via an intent on Android
My app needs to show Google Maps directions from A to B, but I don't want to put the Google Maps into my application - instead, I want to launch it using an Intent. Is this possible? If yes, how?
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Which is faster in Python: x**.5 or math.sqrt(x)?
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In python 2.6 the (float).__pow__() function uses the C pow() function and the math.sqrt() functions uses the C sqrt() function.
In glibc compiler the implementation of pow(x,y) is quite complex and it is well optimized for various exceptional cases...