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Getting the error “Java.lang.IllegalStateException Activity has been destroyed” when using tabs with
... problem but when I press on tab2 for the second time I get the error mentioned above. The main activity is as follows:
13 ...
How to remove a package from Laravel using composer?
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composer remove <packageName> I think this one is perfect for removing any packages. Forget about Vendor :) For example, composer remove laravel/tinker
– Shamsul Huda
Feb 10 at 15:00
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What does “Object reference not set to an instance of an object” mean? [duplicate]
... I think this answer is the best answer for NullException. It saved one my projects.
– Ali reza Soleimani Asl
Mar 14 '17 at 14:06
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TSQL Pivot without aggregate function
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You can use the MAX aggregate, it would still work. MAX of one value = that value..
In this case, you could also self join 5 times on customerid, filter by dbColumnName per table reference. It may work out better.
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Is there a way to 'uniq' by column?
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If you want to retain the last one of the duplicates you could use
tac a.csv | sort -u -t, -r -k1,1 |tac
Which was my requirement
here
tac will reverse the file line by line
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./
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Why is not mentioned quantifiers \Q and \E for escaping the sequence of characters?
– SerG
May 27 '14 at 8:29
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Parsing a CSV file using NodeJS
... NodeCSV is also well supported and happens to have approximately one order of magnitude more users. npmjs.com/package/csv
– steampowered
Jun 16 '15 at 16:21
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foldl versus foldr behavior with infinite lists
... it.
So the two important points to note are these:
foldr can transform one lazy recursive data structure into another.
Otherwise, lazy folds will crash with a stack overflow on large or infinite lists.
You may have noticed that it sounds like foldr can do everything foldl can, plus more. This ...
Why use AJAX when WebSockets is available?
.../Comet, then consider using WebSockets.
Also, some answers indicate that one of the downsides of WebSockets is limited/mixed server and browser support. Let me just diffuse that a bit. While iOS (iPhone, iPad) still supports the older protocol (Hixie) most WebSockets servers support both Hixie and...
While loop to test if a file exists in bash
... by adding:
while [ ! -f /tmp/list.txt ]
do
sleep 2 # or less like 0.2
done
ls -l /tmp/list.txt
You might also make sure that you're using a Bash (or related) shell by typing 'echo $SHELL'. I think that CSH and TCSH use a slightly different semantic for this loop.
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