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Difference between SRC and HREF
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NOTE: @John-Yin's answer is more appropriate considering the changes in the specs.
Yes. There is a differentiation between src and href and they can't be used interchangeably. We use src for replaced elements while href for establishing a relationshi...
How do I detect if software keyboard is visible on Android Device or not?
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72
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Git merge master into feature branch
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630
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Entity Framework and Connection Pooling
...onnnection pooling in connection string if you don't want to use it. (read more about SQL Server Connection Pooling (ADO.NET))
Never ever use global context. ObjectContext internally implements several patterns including Identity Map and Unit of Work. Impact of using global context is different per ...
What do hjust and vjust do when making a plot using ggplot?
...es the y-axis text). (This is, in my view, unfortunate. It would be much more useful to have the alignment relative to the axis.)
DF <- data.frame(x=LETTERS[1:3],y=1:3)
p <- ggplot(DF, aes(x,y)) + geom_point() +
ylab("Very long label for y") +
theme(axis.title.y=element_text(angle=...
T-SQL: Deleting all duplicate rows but keeping one [duplicate]
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111
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How to indent a few lines in Markdown markup?
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How can two strings be concatenated?
...ctor to be collapsed.
You can even combine both:
> paste(x, "and some more", sep="|-|", collapse="--")
[1] "Hello|-|and some more--World|-|and some more"
Hope this helps.
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How do I write stderr to a file while using “tee” with a pipe?
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711
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Test if remote TCP port is open from a shell script
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As pointed by B. Rhodes, nc (netcat) will do the job. A more compact way to use it:
nc -z <host> <port>
That way nc will only check if the port is open, exiting with 0 on success, 1 on failure.
For a quick interactive check (with a 5 seconds timeout):
nc -z -v -w5 <...