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What is an ORM, how does it work, and how should I use one? [closed]
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Object-Relational Mapping (ORM) is a technique that lets you query and manipulate data from a database using an object-oriented paradigm. When talking about ORM, most people are referring to a library that implements the Object-Relational Mapping technique, hence the phrase "an ORM".
An ORM...
Exclude .svn directories from grep [duplicate]
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If you use ack (a 'better grep') it will handle this automatically (and do a lot of other clever things too!). It's well worth checking out.
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Create a table without a header in Markdown
...ort tables without headers. That means the separation line for headers is mandatory.
Parsers that do not support tables without headers
multimarkdown
Maruku: A popular implementation in Ruby
byword: "All tables must begin with one or more rows of headers"
PHP Markdown Extra "second line contains ...
Using tags to turn off caching in all browsers? [duplicate]
...er here:
How to control web page caching, across all browsers?
For IE9 and before
Do not blindly copy paste this!
The list is just examples of different techniques, it's not for direct
insertion. If copied, the second would overwrite the first and the
fourth would overwrite the third be...
Excluding directory when creating a .tar.gz file
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To exclude whole folder and its content: tar -pczvf MyBackup.tar.gz /home/user/public_html/ --exclude "/home/user/public_html/tmp/*"
– Dr.jacky
Nov 14 '16 at 6:08
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onBitmapLoaded of Target object not called on first load
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As noted by the other respondents (@lukas and @mradzinski), Picasso only keeps a weak reference to the Target object. While you can store a strong reference Target in one of your classes, this can still be problematic if the Target references a View in any manner, si...
Clicking the back button twice to exit an activity
I've noticed this pattern in a lot of Android apps and games recently: when clicking the back button to "exit" the application, a Toast comes up with a message similar to "Please click BACK again to exit".
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How to find a hash key containing a matching value
... be an array of all the matching values, where each is an array of the key and value.
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How to remove element from array in forEach loop?
... element in an array in a forEach loop, but am having trouble with the standard solutions I've seen.
7 Answers
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Short form for Java if statement
...= city.getName() == null ? "N/A" : city.getName();
– Andres F.
Jan 17 '12 at 17:02
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