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NSString property: copy or retain?
...u write yourself), it is usually better to retain them rather than copy in order to avoid wasting time and memory.
– Rob Napier
Apr 27 '10 at 0:08
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What is PEP8's E128: continuation line under-indented for visual indent?
...rs(sample_generators['test'])
Which will give the same style-warning. In order to get rid of it I had to rewrite it to:
return \
combine_sample_generators(sample_generators['train']), \
combine_sample_generators(sample_generators['dev']), \
combine_sample_generators(sa...
Join between tables in two different databases?
... will work:
SELECT *
SELECT t1.*,t2.column2
SELECT A.table1.column1, t2.*
etc.
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Restore a postgres backup file using the command line?
...allow
pg_restore to be selective about what
is restored, or even to reorder the
items prior to being restored. The
archive file formats are designed to
be portable across architectures.
So depends on the way it was dumped out. You can probably figure it out using the excellent file(1...
Faster s3 bucket duplication
... It supports non-concurrent sync based on file modified time, size, etc. It was blazing fast when I tried it. I believe the objects are copied directly on S3 without downloading them to the local machine. It doesn't run in parallel by default but I'm sure you could have multiple sync commands...
Copy a variable's value into another
... the answers are so complex. In Javascript, primitives (strings, numbers, etc) are passed by value, and copied. Objects, including arrays, are passed by reference. In any case, assignment of a new value or object reference to 'a' will not change 'b'. But changing the contents of 'a' will change ...
Android get current Locale, not default
... the resource Configuration object, i.e.
Locale current = getResources().getConfiguration().locale;
You may find that this value is updated more quickly after a settings change if that is necessary for your application.
s...
Split string into an array in Bash
...on it), but it's undesirable to have to mess with global shell settings in order to hack a basic string-to-array parsing operation in local code.
Another issue with this answer is that all empty fields will be lost. This may or may not be a problem, depending on the application.
Note: If you're go...
Converting JSON data to Java object
...return title; }
public Long getId() { return id; }
public Boolean getChildren() { return children; }
public List<Data> getGroups() { return groups; }
public void setTitle(String title) { this.title = title; }
public void setId(Long id) { this.id = id; }
public void set...
Difference between .success() and .complete()?
...ss() is called when the server returns success status code, like: 200, 201 etc.
complete() is called always when the request is complete. (no matter, it is success/error response from server.)
So,
when there is success response from server: complete() and success() is called.
when there is err...