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jQuery / Javascript - How do I convert a pixel value (20px) to a number value (20)
...his won't work for "20pt" or "20em". parseInt("20pt") == 20! This may be all that the poster needs, but I'd like to be able to use X("20em") for example and get back the true width in pixels.
– Lawrence I. Siden
May 20 '11 at 22:53
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Virtual Serial Port for Linux
...l port, but will send/receive everything it does via /dev/ptyp5.
If you really need it to talk to a file called /dev/ttys2, then simply move your old /dev/ttys2 out of the way and make a symlink from ptyp5 to ttys2.
Of course you can use some number other than ptyp5. Perhaps pick one with a high ...
Equivalent of LIMIT and OFFSET for SQL Server?
In PostgreSQL there is the Limit and Offset keywords which will allow very easy pagination of result sets.
16 Answers
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@Resource vs @Autowired
... the annotation, perform injection by type. The difference is:
@Resource allows you to specify a name of the injected bean
@Autowired allows you to mark it as non-mandatory.
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Enable zooming/pinch on UIWebView
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you can use webView.scalesPageToFit=YES; programmatically
If you are using in xib than just click the check box "Scaling" scales Page to fit
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How to mkdir only if a directory does not already exist?
...is used for both files / directories and just checks existence. Also, they all return 0 upon success, so ! is redundant. Correct me if I'm wrong.
– alkar
Apr 27 '09 at 14:57
1
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How to copy part of an array to another array in C#?
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@Hamish well, maybe. Personally I wouldn't add explicit names unless it made the code significantly clearer, and I'm not sure (in this case) that the parameter names by themselves would achieve that.
– Marc Gravell♦
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SQLite - How do you join tables from different databases?
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attach 'database1.db' as db1;
attach 'database2.db' as db2;
You can see all connected databases with keyword
.databases
Then you should be able to do the following.
select
*
from
db1.SomeTable a
inner join
db2.SomeTable b on b.SomeColumn = a.SomeColumn;
Note that "[t]he database ...
Using Intent in an Android application to show another activity
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@LouisRhys all activities need to be declared in the manifest file. See Description section here: developer.android.com/guide/topics/manifest/…
– ataulm
Dec 22 '12 at 17:01
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Generate unique random numbers between 1 and 100
...mber between 0 (inclusive) and 1 (exclusive). If the Math.random() accidentally returns 0, the Math.ceil(0) is also 0, though the chance is low.
– Qian Chen
Apr 22 '15 at 9:58
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