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string.Join on a List or other type
...ame effect using Select and ToArray.
return string.Join(",", a.Select(x => x.ToString()).ToArray());
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Unable to execute dex: GC overhead limit exceeded in Eclipse
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It can be fixed by changing the VM values in Eclipse.ini. Set the values to 512 and 1024 as below:
openFile
--launcher.XXMaxPermSize
512M
-showsplash
org.eclipse.platform
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVer...
nvm keeps “forgetting” node in new terminal session
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Try nvm alias default. For example:
$ nvm alias default 0.12.7
This sets the default node version in your shell. Then verify that the change persists by closing the shell window, opening a new one, then:
node --version
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Can you make valid Makefiles without tab characters?
On my system (Mac OS X), make seems to require that that Makefiles have a tab character preceding the the content of each command line, or it throws a syntax error.
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ruby 1.9: invalid byte sequence in UTF-8
...) that consumes lots of HTML from a lot of random sites.
When trying to extract links, I decided to just use .scan(/href="(.*?)"/i) instead of nokogiri/hpricot (major speedup). The problem is that I now receive a lot of " invalid byte sequence in UTF-8 " errors.
From what I understood, the ne...
CKEditor automatically strips classes from div
...hange the code to how it sees fit whenever I press the source button. For example if I hit source and create a <div> ...
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Viewing my IIS hosted site on other machines on my network
...on and then select the last item -
World Wide Web Services(HTTP)
click next and leave the next steps as they are (allow the
connection)
Because outbound traffic(from server to outside world) is allowed by default .it means for example http responses that web server is sending back to outside...
MySQL - UPDATE query based on SELECT Query
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You can actually do this one of two ways:
MySQL update join syntax:
UPDATE tableA a
INNER JOIN tableB b ON a.name_a = b.name_b
SET validation_check = if(start_dts > end_dts, 'VALID', '')
-- where clause can go here
ANSI SQL syntax:
UPDATE tableA SET validation_check =
(SELECT i...
Deleting DataFrame row in Pandas based on column value
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@vfxGer if there is a space in the column, like 'line race', then you can just do df = df[df['line race'] != 0]
– Paul
Apr 27 '16 at 16:36
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Why does appending “” to a String save memory?
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Doing the following:
data.substring(x, y) + ""
creates a new (smaller) String object, and throws away the reference to the String created by substring(), thus enabling garbage collection of this.
The important thing to realise is that substring() gives a wi...