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When do we need curly braces around shell variables?
... unconditionally required when:
expanding array elements, as in ${array[42]}
using parameter expansion operations, as in ${filename%.*} (remove extension)
expanding positional parameters beyond 9: "$8 $9 ${10} ${11}"
Doing this everywhere, instead of just in potentially ambiguous cases, can be c...
How to increase heap size of an android application?
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211
You can use android:largeHeap="true" to request a larger heap size, but this will not work on ...
Can we use join for two different database tables?
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What is the difference between Amazon SNS and Amazon SQS?
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edited Feb 26 '19 at 8:26
Dmytro Melnychuk
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answ...
Create dynamic URLs in Flask with url_for()
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287
It takes keyword arguments for the variables:
url_for('add', variable=foo)
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Throw an error in a MySQL trigger
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Laurel
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answered Aug 1 '08 at 13:02
JustinJustin
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How to use Greek symbols in ggplot2?
My categories need to be named with Greek letters. I am using ggplot2 , and it works beautifully with the data. Unfortunately I cannot figure out how to put those greek symbols on the x axis (at the tick marks) and also make them appear in the legend. Is there any way to do it?
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When to use a key/value store such as Redis instead/along side of a SQL database?
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102
I can't seem to figure out when it's time to use it in an application.
I would recommend yo...