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What is the difference between JSF, Servlet and JSP?
I have some questions. These are :
15 Answers
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Should switch statements always contain a default clause?
...old that it's good practice to include a default clause in all switch statements. I recently remembered this advice but can't remember what the justification was. It sounds fairly odd to me now.
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Is there a way to provide named parameters in a function call in JavaScript?
I find the named parameters feature in C# quite useful in some cases.
10 Answers
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How to invoke a Linux shell command from Java
I am trying to execute some Linux commands from Java using redirection (>&) and pipes (|). How can Java invoke csh or bash commands?
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How to try convert a string to a Guid [duplicate]
I did not find the TryParse method for the Guid. I’m wondering how others handle converting a guid in string format into a guid type.
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Virtualbox “port forward” from Guest to Host [closed]
...15 Bcast:10.0.2.255 Mask:255.255.255.0
Go to Vbox instance window -> Menu -> Network adapters:
adapter should be NAT
click on "port forwarding"
insert new record (+ icon)
for host ip enter 127.0.0.1, and for guest ip address you got from prev. step (in my case it is 10.0.2.15)
in your cas...
The cause of “bad magic number” error when loading a workspace and how to avoid it?
...ead of readRDS() (yes, 9 months later, I'm back here for pretty much the same mistake).
– Waldir Leoncio
Nov 13 '14 at 17:35
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Why shouldn't all functions be async by default?
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First off, thank you for your kind words. It is indeed an awesome feature and I am glad to have been a small part of it.
If all my code is slowly turning async, why not just make it all async by default?
Well, you're exaggerating; all your code isn't turning async. When you add two...
Count number of occurences for each unique value
...mmyData)
# dummyData
# 1 2
# 25 75
## or another presentation of the same data
as.data.frame(table(dummyData))
# dummyData Freq
# 1 1 25
# 2 2 75
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Showing line numbers in IPython/Jupyter Notebooks
...ent notebook versions Shift-L should toggle for all cells.
If you can't remember the shortcut, bring up the command palette Ctrl-Shift+P (Cmd+Shift+P on Mac), and search for "line numbers"), it should allow to toggle and show you the shortcut.
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