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PostgreSQL delete with inner join
... The best answer, especially the first one, as it allows you to match by multiple fields.
– Kostanos
Nov 14 '17 at 14:58
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Invoke(Delegate)
... understand what is actually going on behind the scenes, and what is meant by "GUI Thread", it's useful to understand what a Message Pump or Message Loop is.
This is actually already answered in the question "What is a Message Pump" and is recommended reading for understanding the actual mechanism...
Intellij idea subversion checkout error: `Cannot run program “svn”`
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I solved this by uncheking the "Use command-line client" option from Subversion settings.
This works with version 1.6 and 1.7 only. See @Vic's answer for SVN version 1.8.
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Writing a dict to txt file and reading it back?
I am trying to write a dictionary to a txt file. Then read the dict values by typing the keys with raw_input . I feel like I am just missing one step but I have been looking for a while now.
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What is the use of the pipe symbol in YAML?
...ad of 6+ because the last block-level element is the array item (specified by -) and the literal is indented 4 from it. Somewhat surprisingly the final: | mapping is not considered a block element even though its value is multi-lined. It sort of makes sense if you think about it -- it's still just...
how to compare two elements in jquery [duplicate]
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See the comment below by @R-U-Bn. The following does the trick: a.is(b)
– JCallico
Mar 8 '12 at 19:43
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Printing newlines with print() in R
...ng writeLines also allows you to dispense with the "\n" newline character, by using c(). As in:
writeLines(c("File not supplied.","Usage: ./program F=filename",[additional text for third line]))
This is helpful if you plan on writing a multiline message with combined fixed and variable input, su...
How to put comments in Django templates
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As answer by Miles, {% comment %}...{% endcomment %} is used for multi-line comments, but you can also comment out text on the same line like this:
{# some text #}
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Scatterplot with marginal histograms in ggplot2
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The gridExtra package should work here. Start by making each of the ggplot objects:
hist_top <- ggplot()+geom_histogram(aes(rnorm(100)))
empty <- ggplot()+geom_point(aes(1,1), colour="white")+
theme(axis.ticks=element_blank(),
panel.backgr...
How to use background thread in swift?
...the foreground when the background thread is complete
})
C. To delay by 3 seconds - note use of completion parameter without background parameter:
backgroundThread(3.0, completion: {
// Your delayed function here to be run in the foreground
})
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