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How to get current time and date in C++?
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what about deleting the instance of struct tm is it possible to just call delete on it?
– Petr
Aug 8 '14 at 13:59
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How to update a plot in matplotlib?
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You essentially have two options:
Do exactly what you're currently doing, but call graph1.clear() and graph2.clear() before replotting the data. This is the slowest, but most simplest and most robust option.
Instead of replotting, you can just update the data of the pl...
Update one MySQL table with values from another
...updated.id = original.id
That should do it, and really its doing exactly what yours is. However, I prefer 'JOIN' syntax for joins rather than multiple 'WHERE' conditions, I think its easier to read
As for running slow, how large are the tables? You should have indexes on tobeupdated.value and ori...
How to colorize diff on the command line?
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First, what kind of shell is this? zsh? I don't recognize =(...) construct. Second, I had diff -ur a b in mind.
– x-yuri
May 5 '15 at 9:47
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MySQLDump one INSERT statement for each data row
...y long lines of text and if the tables have a huge amount of data, that is what will happen.
– Jahmic
Sep 17 '13 at 12:16
1
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How to make an Android device vibrate?
... it gives me: context cannot be resolved or is not a field .. ?! what is the problem
– McLan
Oct 9 '14 at 15:58
3
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Change date format in a Java string
...e patterns are case sensitive. Read the java.text.SimpleDateFormat javadoc what the individual parts stands for. So stands for example M for months and m for minutes. Also, years exist of four digits yyyy, not five yyyyy. Look closer at the code snippets I posted here above.
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Big O, how do you calculate/approximate it?
Most people with a degree in CS will certainly know what Big O stands for .
It helps us to measure how well an algorithm scales.
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How to horizontally center a
...idth less than the containing <div> will work. The margin: 0 auto is what does the actual centering.
If you are targeting Internet Explorer 8 (and later), it might be better to have this instead:
#inner {
display: table;
margin: 0 auto;
}
It will make the inner element center horizontal...
Ruby: Can I write multi-line string with no concatenation?
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There are pieces to this answer that helped me get what I needed (easy multi-line concatenation WITHOUT extra whitespace), but since none of the actual answers had it, I'm compiling them here:
str = 'this is a multi-line string'\
' using implicit concatenation'\
' to pre...