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When to use valueChangeListener or f:ajax listener?
...e" and FacesContext#renderResponse() to prevent that from happening. After all, using the valueChangeListener to execute business actions has actually always been a hack/workaround.
Summarized: Use the valueChangeListener only if you need to intercept on the actual value change itself. I.e. you're ...
Check if two linked lists merge. If so, where?
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If
by "modification is not allowed" it was meant "you may change but in the end they should be restored", and
we could iterate the lists exactly twice
the following algorithm would be the solution.
First, the numbers. Assume the first list is of le...
How to delete projects in IntelliJ 12?
... project you just deleted. So I am thinking there should be another (and really easy way) to delete a project.
10 Answers
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How to detect the physical connected state of a network cable/connector?
...ugged in Again:
eth0/carrier:1
eth0/operstate:up
Side Trick: harvesting all properties at once the easy way:
grep "" eth0/*
This forms a nice list of key:value pairs.
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Checking from shell script if a directory contains files
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The solutions so far use ls. Here's an all bash solution:
#!/bin/bash
shopt -s nullglob dotglob # To include hidden files
files=(/some/dir/*)
if [ ${#files[@]} -gt 0 ]; then echo "huzzah"; fi
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Suppress or Customize Intro Message in Fish Shell
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A little nuance, but to have no greeting at all, just invoke the suggested set command.
– gitness
Aug 21 '19 at 0:14
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In C# check that filename is *possibly* valid (not that it exists) [duplicate]
... not valid
} else {
// file name is valid... May check for existence by calling fi.Exists.
}
For creating a FileInfo instance the file does not need to exist.
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Finding differences between elements of a list
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Actually simply list(map(operator.sub, t[1:], t[:-1])) will do.
– blhsing
Aug 6 '18 at 15:24
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Git: Ignore tracked files
I have some tracked files in a repository which are automatically modified when building the code. I don't want to untrack them, I just don't want them to appear as modified and I don't want them to be staged when I git add.
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Linq: GroupBy, Sum and Count
...oint me out to use First() and leave out SelectMany. The ResultLine is actually a ViewModel. The price will get formatted with currency sign. That's why I need it to be a string. But i could change quantity to int.. I'll see now if this may also help for my website. I'll let you know.
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