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What is the best way to test for an empty string in Go?
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As of now, the Go compiler generates identical code in both cases, so it is a matter of taste. GCCGo does generate different code, but barely anyone uses it so I wouldn't worry about that.
https://godbolt.org/z/fib1x1
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I want to copy table contained from one database and insert onto another database table
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MySQL can now store table data in individual files (and the frm files are too per table). This approach would no doubt work, but with huge databases it is slow. Is there another way maybe?
– Alex Kovshovik
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What do @, - and + do as prefixes to recipe lines in Make?
...ld copy of the manual that was the chapter on "commands", but term du jour now seems to be "recipes".
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Can I have multiple background images using CSS?
...peat: repeat-x, repeat;
}
The current versions of all the major browsers now support it, however if you need to support IE8 or below, then the best way you can work around it is to have extra divs:
<body>
<div id="bgTopDiv">
content here
</div>
</body>
bo...
MD5 algorithm in Objective-C
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Thanks! Patched it up now. This was never a problem for me since in the original implementation, I always ran it in a dedicated thread ;)
– Alexander W
Oct 10 '14 at 8:59
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Adjust UILabel height to text
...want to adjust their height to the text, this is the code I wrote for this now
17 Answers
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How to use JUnit to test asynchronous processes
...cutor {
@Override public void execute(Runnable r) {
r.run();
}
}
Now my JUnit test of the asynchronous method is pretty clean --
@Test public void testDoAsync() {
Executor executor = new SynchronousExecutor();
Foo objectToTest = new Foo(executor);
Callback callback = mock(Callback....
Read specific columns from a csv file with csv module?
... content = list(row[i] for i in included_cols)
print content
Now that we have covered your mistake, I would like to take this time to introduce you to the pandas module.
Pandas is spectacular for dealing with csv files, and the following code would be all you need to read a csv and sa...
Import Error: No module named numpy
...k as they defaulted the installation to python 3's package folders (for unknown reasons). I used pip2 install numpy to resolve the errors for "no module found...".
– Arshin
Sep 3 '18 at 7:11
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In PHP, can you instantiate an object and call a method on the same line?
...on of the statement (new Foo)->property - the value you are storing has nowhere to go because the object will no longer exist after that as it's not stored anywhere.
– thomasrutter
Aug 3 '15 at 1:14
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