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Why is using the JavaScript eval function a bad idea?
The eval function is a powerful and easy way to dynamically generate code, so what are the caveats?
26 Answers
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Why does git perform fast-forward merges by default?
Coming from mercurial, I use branches to organize features.
Naturally, I want to see this work-flow in my history as well.
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Convert NSArray to NSString in Objective-C
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Won't this accomplish the same thing as calling [array description]?
– TechZen
Dec 1 '09 at 20:55
10
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How to use Oracle ORDER BY and ROWNUM correctly?
...return "1" in the last column. You would need to list the columns individually to avoid this.
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ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
I have installed Oracle 11g Express Edition Release 2 in my windows 7 64 bit OS and tried to execute JDBC program, then I got the following error:
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Select by partial string from a pandas DataFrame
...egex search is not required, so specify regex=False to disable it.
#select all rows containing "foo"
df1[df1['col'].str.contains('foo', regex=False)]
# same as df1[df1['col'].str.contains('foo')] but faster.
col
0 foo
1 foobar
Performance wise, regex search is slower than substring s...
CSS fixed width in a span
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display: inline-block;
width: 50px;
}
</style>
This works on all browsers apart from FF2 and below.
Firefox 2 and lower don't support this
value. You can use -moz-inline-box,
but be aware that it's not the same as
inline-block, and it may not work as
you expect in some situ...
click() event is calling twice in jquery
I setup a link element and called its click event in jquery but the click event is calling twice, please see below the code of jquery.
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Signal handling with multiple threads in Linux
...ote that this is specific to SIGUSR1, which IIRC doesn't interrupt system calls. If you tried this with SIGINT for example, it could interrupt a stream read, and when you went to return to reading, the stream may return an error that it was interrupted.
– Alan
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Can't execute jar- file: “no main manifest attribute”
I have installed an application, when I try to run it (it's an executable jar) nothing happens. When I run it from the commandline with:
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