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Android Studio with Google Play Services
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All those answers are wrong, since the release of gradle plugin v0.4.2 the setup of google play services under android studio is straight forward. You don't need to import any jar or add any project library nor add any new mo...
How to trigger Autofill in Google Chrome?
...stion and one for which documentation is surprisingly hard to come by. Actually, in many cases you will find that the Chrome Autofill functionality "just works." For example, the following snippet of html produces a form which, at least for me (Chrome v. 18), is automatically filled after clicking i...
Query to count the number of tables I have in MySQL
... Just a note about the use databasename; command. If the database is really big, the command can execute with a long wait time. In that case, login should be done with the option -A, ie: mysql -uroot -p -A, and the command will work fast.
– azurecorn
Jul 21...
MongoDB: update every document on one field
I have a collected named foo hypothetically.
4 Answers
4
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How to use '-prune' option of 'find' in sh?
... test (up to and including -prune) will return false for the stuff you actually want (ie: the stuff you don't want to prune out).
Here's an example:
find . -name .snapshot -prune -o -name '*.foo' -print
This will find the "*.foo" files that aren't under ".snapshot" directories. In this example, -na...
What's wrong with using == to compare floats in Java?
...bs(sectionID - currentSectionID) < epsilon)
where epsilon is a very small number like 0.00000001, depending on the desired precision.
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Is embedding background image data into CSS as Base64 good or bad practice?
... without any of the style information until the download completes. For small images that you don't intend on changing often if ever it is a fine solution.
as far as generating the base64 encoding:
http://b64.io/
http://www.motobit.com/util/base64-decoder-encoder.asp (upload)
http://www.greywyve...
Array vs. Object efficiency in JavaScript
...an array, too:
var a3 = [];
a3[29938] = "a";
a3[32994] = "b";
It's basically an array with holes in it, because every array does have continous indexing. It's slower than arrays without holes. But iterating manually through the array is even slower (mostly).
This is an object:
var a3 = {};
a3[2...
Is the order guaranteed for the return of keys and values from a LinkedHashMap object?
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The Map interface provides three
collection views, which allow a map's contents to be viewed as a set
of keys, collection of values, or set
of key-value mappings. The order of
a map is defined as the order in which
the iterators on the map's collection
views return their ...
What blocks Ruby, Python to get Javascript V8 speed? [closed]
...ineers working on it, that have decades of experience (I'm talking individually – collectively it's more like centuries) in creating high-performance execution engines for dynamic OO languages. They are basically the same people who also created the Sun HotSpot JVM (among many others).
Lars Bak,...