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Find when a file was deleted in Git
... forgot the whole name of the file =( maybe it is possible to get a log of all deletions?
– wutzebaer
Jun 27 '14 at 8:15
...
Break a previous commit into multiple commits
...t recent commit, first:
$ git reset HEAD~
Now commit the pieces individually in the usual way, producing as many commits as you need.
B) Splitting a commit farther back
This requires rebasing, that is, rewriting history. To find the correct commit, you have several choices:
If it was three co...
Is there an advantage to use a Synchronized Method instead of a Synchronized Block?
...nchronized method over the block.
Perhaps the only one ( but I wouldn't call it an advantage ) is you don't need to include the object reference this.
Method:
public synchronized void method() { // blocks "this" from here....
...
...
...
} // to here
Block:
public void method() {...
Ternary operation in CoffeeScript
...placement for what is supposed to be a concise expression. And ?: is after all a very ingrained standard among many languages, JavaScript among them. Notwithstanding all that, it seems to be set in stone at this stage.]
– mahemoff
Nov 15 '14 at 3:16
...
How do I find out which DOM element has the focus?
...
Use document.activeElement, it is supported in all major browsers.
Previously, if you were trying to find out what form field has focus, you could not. To emulate detection within older browsers, add a "focus" event handler to all fields and record the last-focused field...
How to zero pad a sequence of integers in bash so that all have the same width?
...uce the following output:
00010
00011
00012
00013
00014
00015
More generally, bash has printf as a built-in so you can pad output with zeroes as follows:
$ i=99
$ printf "%05d\n" $i
00099
You can use the -v flag to store the output in another variable:
$ i=99
$ printf -v j "%05d" $i
$ echo $j...
How can I pipe stderr, and not stdout?
...1 >/dev/null | grep 'something'
For the details of I/O redirection in all its variety, see the chapter on Redirections in the Bash reference manual.
Note that the sequence of I/O redirections is interpreted left-to-right, but pipes are set up before the I/O redirections are interpreted. File ...
Get array of object's keys
...keys are unordered).
This is an ES5 feature. This means it works in all modern browsers but will not work in legacy browsers.
The ES5-shim has a implementation of Object.keys you can steal
share
|
...
Accessing inactive union member and undefined behavior?
...representation in the new type as described in 6.2.6 (a process sometimes called ‘‘type
punning’’). This might be a trap representation.
The situation with C++:
c++11
9.5 Unions [class.union]
In a union, at most one of the non-static data members can be active at any time, ...
Installing MSBuild 4.0 without Visual Studio 2010
I installed .NET 4.0 and VS 2010 RC on my laptop and MSBuild was automatically installed. I was hoping to build a continuous integration server by just installing the .NET SDK without VS 2010, so I downloaded the .NET 4.0 Framework from Microsoft at this link . Unfortunately, it doesn't appear to...