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Practical uses of git reset --soft?
...s HEAD, most often updating the branch ref, and only the HEAD.
This differ from commit --amend as:
it doesn't create a new commit.
it can actually move HEAD to any commit (as commit --amend is only about not moving HEAD, while allowing to redo the current commit)
Just found this example of com...
How can I move a single directory from a git repository to a new repository whilst maintaining the h
...
You can use git filter-branch to rewrite the history of a project. From the documentation:
To rewrite the repository to look as
if foodir/ had been its project root,
and discard all other history:
git filter-branch --subdirectory-filter foodir -- --all
Make several copies of your...
Drop unused factor levels in a subsetted data frame
...- factor(subdf$letters)
> subdf$letters
[1] a b c
Levels: a b c
EDIT
From the factor page example:
factor(ff) # drops the levels that do not occur
For dropping levels from all factor columns in a dataframe, you can use:
subdf <- subset(df, numbers <= 3)
subdf[] <- lapply(subd...
How to remove indentation from an unordered list item?
I want to remove all indentation from ul . I tried setting margin , padding , text-indent to 0 , but no avail. Seems that setting text-indent to a negative number does the trick - but is that really the only way to remove the indentation?
...
Rebasing a Git merge commit
...se the --rebase-merges option on git rebase, which is described as follows from the manual:
By default, a rebase will simply drop merge commits from the todo list, and put the rebased commits into a single, linear branch. With --rebase-merges, the rebase will instead try to preserve the branching s...
How can I share code between Node.js and the browser?
...Node, which lets you expose a JavaScript function so that it can be called from another machine using a simple JSON-based network protocol.
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What's the difference between the Dependency Injection and Service Locator patterns?
...ss is given its dependencies. It neither knows, nor cares where they come from. One important result of this is that the DI example is much easier to unit test -- because you can pass it mock implementations of its dependent objects. You could combine the two -- and inject the service locator (or...
Why does Path.Combine not properly concatenate filenames that start with Path.DirectorySeparatorChar
From the Immediate Window in Visual Studio:
16 Answers
16
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What does iota of std::iota stand for?
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From the original SGI STL documentation:
The name iota is taken from the programming language APL.
In his Turing Award lecture, Ken Iverson (inventor of APL) said this:
For example, the integer function denoted by ...
What is the difference between char s[] and char *s?
...ill probably be stored within an "initialised data segment" that is loaded from the executable file into writeable memory when the program is run.
On the other hand, this declaration:
char *s ="hello";
Creates two objects:
a read-only array of 6 chars containing the values 'h', 'e', 'l', 'l', ...