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How to resolve : Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” [du
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I know this thread is a year old now but having experienced the same problem I managed to solve the problem by setting a target server for my project.
i.e. right-click on your project and select 'Properties' -> 'Targeted Run...
Choosing between qplot() and ggplot() in ggplot2 [closed]
...o the console 15 minutes earlier, I write almost all of them into a script now - so I use ggplot almost all of the time.
(Interesting to see the diversity of answers!)
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How to Resize a Bitmap in Android?
...roach. I find the image is much more clear with matrix approach. I do not know if it is common or just because I am using a simulator instead of a phone. Just a hint for someone who encouters the same trouble like me.
– Anson Yao
Nov 18 '14 at 4:47
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Rails 3 migrations: Adding reference column?
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If you are using the Rails 4.x you can now generate migrations with references, like this:
rails generate migration AddUserRefToProducts user:references
like you can see on rails guides
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How to test an Internet connection with bash?
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Careful now!" cat /sys/class/net/wwan0/carrier does not work on ubuntu 14.04 LTS.
– dotnetCarpenter
Mar 1 '15 at 20:45
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Pretty Printing a pandas dataframe
... want an inbuilt function to dump your data into some github markdown, you now have one. Take a look at to_markdown:
df = pd.DataFrame({"A": [1, 2, 3], "B": [1, 2, 3]}, index=['a', 'a', 'b'])
print(df.to_markdown())
| | A | B |
|:---|----:|----:|
| a | 1 | 1 |
| a | 2 | 2 |
| b...
Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
...or += will only update (reassign) an existing variable, but for reasons unknown (likely consistency in this context), Python treats it as an assignment). The Python interpreter sees this at module load time and decides (correctly so) that the global scope's Var1 should not be used inside the local s...
NameValueCollection vs Dictionary [duplicate]
...hash key lookup', which is what my initial question was. I also understand now that when i wrote 'hash table' you understood me to mean a .NET HashTable which is NOT what i meant. I meant it generically, which could otherwise be expressed as a 'quick binary search' for the key name. And this is inde...
How to var_dump variables in twig templates?
...you only present what you have been given is fine and all, but how do you know what is available? Is there a "list all defined variables" functionality in TWIG? Is there a way to dump a variable?
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Scroll Automatically to the Bottom of the Page
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Works in newer versions of Chrome now, but some of the extra options (like smooth scrolling) don't seem to be implemented yet.
– Matt Zukowski
Feb 17 '16 at 16:42
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