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How does the String class override the + operator?
...MBER 27 L4
RETURN
Looking at the example above and how the byte code based on the source code in the given example is generated, you will be able to notice that the compiler has internally transformed the following statement
cip+ciop;
into
new StringBuilder(cip).append(ciop).toString();
...
Remove an element from a Bash array
...). In practice, O(n) assuming k much lower than n. Most of the speed up is based on using associative array to identify items to be removed.
Performance (n-array size, k-values to delete). Performance measure seconds of user time
N K New(seconds) Current(seconds) Speedup
1000 10 ...
SQL Server - copy stored procedures from one db to another
I am new to SQL, and what I needed to do was to combine 2 .mdf databases into one. I did that using SQL Server 2008 Manager - Tasks > Import/Export tables.The tables and views were copied successfully, but there are no Stored procedures in the new database. Is there any way to do that?
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What is the difference between and ?
... up your content should describe the content. Don't mark up your document based on how it should look - mark it up based on what it is.
If you need a generic container purely for layout purposes then use a <div>. If you need an element to describe a paragraph of content then use a <p&g...
Libraries not found when using CocoaPods with iOS logic tests
...rs some others have mentioned. Stick with updating the configuration file 'based on' bit. Make sure you haven't linked libPods.a twice.
– Bob Spryn
May 13 '14 at 20:58
3
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How can I make git do the “did you mean” suggestion?
...submit the patch/branch to the git folks to have it accepted into the code base. Currently, it doesn't work that way...
– twalberg
Jun 2 '16 at 18:39
1
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cannot load such file — zlib even after using rvm pkg install zlib
...install 1.9.3
[Edit] As commenter @chrisfinne mentions, on CentOS/RedHat based systems:
$ sudo yum install zlib-devel
$ rvm reinstall 1.9.3
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Permission denied (publickey) when SSH Access to Amazon EC2 instance [closed]
... to connect with the wrong username. ubuntu is the username for the ubuntu based AWS distribution, but on some others it's ec2-user (or admin on some Debians, according to Bogdan Kulbida's answer)(can also be root, fedora, see below)
Trying to connect the wrong host. Is that the right host you are ...
Can a dictionary be passed to django models on create?
...e instance of model
m = MyModel(**data_dict)
# don't forget to save to database!
m.save()
As for your second question, the dictionary has to be the final argument. Again, extra and extra2 should be fields in the model.
m2 =MyModel(extra='hello', extra2='world', **data_dict)
m2.save()
...