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What is the _snowman param in Ruby on Rails 3 forms for?
...why a user would decide to do something seemingly so crazy, check out this google search. Once the user has put the web-site into Latin-1 mode, if they use characters that can be understood as both Latin-1 and Unicode (for instance, é or ç, common in names), Internet Explorer will encode them in L...
Is a RelativeLayout more expensive than a LinearLayout?
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In a talk at Google I/O 2013 (Writing Custom Views for Android), Romain Guy clarified the misunderstanding that caused everyone to start using RelativeLayouts for everything. A RelativeLayout always has to do two measure passes. Overall i...
How can I connect to Android with ADB over TCP? [closed]
...r USB
adb usb
Apps to automate the process
There are also several apps on Google Play that automate this process. A quick search suggests adbWireless, WiFi ADB and ADB WiFi. All of these require root access, but adbWireless requires fewer permissions.
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Using member variable in lambda capture list inside a member function
... = [tmp](){}; // capture the local copy per copy
† I'm simplifying - Google for "reaching scope" or see §5.1.2 for all the gory details.
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What's the difference between the various methods to get a Context?
...together a few facts from various sources.
This blog post on the official Google Android developers blog was written mostly to help address memory leaks, but provides some good information about contexts as well:
In a regular Android application, you
usually have two kinds of Context,
Activ...
HTML table headers always visible at top of window when viewing a large table
...ssible alternatives
js-floating-table-headers
js-floating-table-headers (Google Code)
In Drupal
I have a Drupal 6 site. I was on the admin "modules" page, and noticed the tables had this exact feature!
Looking at the code, it seems to be implemented by a file called tableheader.js. It applies t...
MongoDB vs. Cassandra [closed]
...is a linearly scalable (amortized constant time reads & writes) dynamo/google bigtable hybrid that features fast writes regardless of data size. It's feature set is minimalistic, little beyond that of an ordered key value store. MongoDB is a heavily featured (and fast) document store at the cost...
Code coverage with Mocha
... I am not able to figure out how to use its code coverage feature. I tried googling it but did not find any proper tutorial. Please help.
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Express.js - app.listen vs server.listen
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I came with same question but after google, I found there is no big difference :)
From Github
If you wish to create both an HTTP and HTTPS server you may do so with the "http" and "https" modules as shown here.
/**
* Listen for connections.
*
* A node `ht...
Git On Custom SSH Port
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(Update: a few years later Google and Qwant "airlines" still send me here when searching for "git non-default ssh port")
A probably better way in newer git versions is to use the GIT_SSH_COMMAND ENV.VAR like:
GIT_SSH_COMMAND="ssh -oPort=1234 -i ~/.ssh...