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How to avoid java.util.ConcurrentModificationException when iterating through and removing elements
...le of the second option, removing any strings with a length greater than 5 from a list:
List<String> list = new ArrayList<String>();
...
for (Iterator<String> iterator = list.iterator(); iterator.hasNext(); ) {
String value = iterator.next();
if (value.length() > 5) {
...
Upgrade Node.js to the latest version on Mac OS
...de.js v0.8.1. But after downloading and installing the latest package file from nodejs.org, I found that system is still using v0.6.16 instead of v0.8.1 when I typed "node -v" in a terminal. Is there any step that I have missed? Or, should I thoroughly uninstall the old version before installing the...
Rails respond_with: how does it work?
...into ActionController::Base, the class your ApplicationController inherits from. Then there is ActionController::Responder which provides the default behavior when using respond_with.
By default, the only behavior rails provides in the response is an implicit attempt to render a template with a n...
ValueError: setting an array element with a sequence
...
From the code you showed us, the only thing we can tell is that you are trying to create an array from a list that isn't shaped like a multi-dimensional array. For example
numpy.array([[1,2], [2, 3, 4]])
or
numpy.array([...
Extracting substrings in Go
I'm trying to read an entire line from the console (including whitespace), then process it. Using bufio.ReadString, the newline character is read together with the input, so I came up with the following code to trim the newline character:
...
Do I need a content-type header for HTTP GET requests?
...ontent-Type" is part of the representation (i.e. payload) metadata. Quoted from
RFC 7231 section 3.1:
3.1. Representation Metadata
Representation header fields provide metadata about the
representation. When a message includes a payload body, the
representation header fields describe how to inter...
What is the purpose of `text=auto` in `.gitattributes` file?
...
From the docs:
Each line in .gitattributes (or .git/info/attributes) file is of form:
pattern attr1 attr2 ...
So here, the pattern is *, which means all files, and the attribute is text=auto.
What does text=auto do?...
How to loop through file names returned by find?
... shell expansion in bash and as a result of that x=$(find . -name "*.txt") from the question is not recommended at all. If find gets a filename with spaces e.g. "the file.txt" you will get 2 separated strings for processing, if you process x in a loop. You can improve this by changing delimiter (bas...
Reordering of commits
... rebase again (non-interactively):
# create a temporary branch
git branch fromAtoB branchA
# move branchA back two commits
git branch -f branchA branchA~2
# rebase those two commits onto branchB
git rebase --onto branchB branchA fromAtoB
# merge (fast-forward) these into branchB
git checkout branch...
How to sum up elements of a C++ vector?
...
I wanted to fix the typo from "accumuate" to "accumulate" by "edit", but was told by stackoverflow that "Edits must be at least 6 characters".
– aafulei
Jun 29 at 9:59
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