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Type converting slices of interfaces
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Here is the official explanation: https://github.com/golang/go/wiki/InterfaceSlice
var dataSlice []int = foo()
var interfaceSlice []interface{} = make([]interface{}, len(dataSlice))
for i, d := range dataSlice {
interfaceSlice[i] = d
}
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Convert string to symbol-able in ruby
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from: http://ruby-doc.org/core/classes/String.html#M000809
str.intern => symbol
str.to_sym => symbol
Returns the Symbol corresponding to str, creating the symbol if it did not previously exist. See Symbol#id2name.
"Koala"...
Insert ellipsis (…) into HTML tag if content too wide
...tion for truncating text on a single line works with all browers listed at http://www.caniuse.com as of writing with the exception of Firefox 6.0. Note that JavaScript is totally unnecessary unless you need to support wrapping multiline text or earlier versions of Firefox.
.ellipsis {
white-spa...
How to make Java honor the DNS Caching Timeout?
... of 0 indicates "never cache". A value of -1 indicates "cache forever".
http://java.sun.com/j2se/1.4.2/docs/api/java/net/InetAddress.html
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fo...
How to echo shell commands as they are executed
...t 1
fi
which will give you output like:
getting URL...
+ curl -s --fail http://example.com/missing -o /tmp/example
curl failed
This does incur the overhead of creating a new subshell for the command, though.
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Travel/Hotel API's? [closed]
...their hotel database and allowing you to book their hotels:
Expedia's EAN http://developer.ean.com/
You need to sign for their affiliate program, which is very easy.
You get immediate access to their hotel databases plus you can make availability/booking requests with several response options, inc...
What is 'Context' on Android?
...nd service etc.) you need a context Although you don't need if you make an http request. Context can be assumed as a bridge between Java and Android.
– Faruk Toptas
Jun 16 '16 at 12:14
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How to calculate a logistic sigmoid function in Python?
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It is also available in scipy: http://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.logistic.html
In [1]: from scipy.stats import logistic
In [2]: logistic.cdf(0.458)
Out[2]: 0.61253961344091512
which is only a costly wrapper (because it all...
How do I escape ampersands in batch files?
...@Wael Dalloul's answer)
% does not need to be escaped
An example:
start http://www.google.com/search?client=opera^&rls=en^&q=escape+ampersand%20and%20percentage+in+cmd^&sourceid=opera^&ie=utf-8^&oe=utf-8
From a batch file
& is escaped like this: ^& (based on @Wael ...
Is calculating an MD5 hash less CPU intensive than SHA family functions?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...