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Can I specify multiple users for myself in .gitconfig?
... an arbitrary number of IDs inside a configfile (~/.gitpassport) which are selectable on a prompt. You can find the project at github.com: git-passport - A Git command and hook written in Python to manage multiple Git accounts / user identities.
...
Purpose of Unions in C and C++
... @legends2k: any decent optimizer will recognize bitwise operations that select an entire byte and generate code to read/write the byte, same as the union but well-defined (and portable). e.g. uint8_t getRed() const { return colour & 0x000000FF; } void setRed(uint8_t r) { colour = (colour &...
Turn off spell checking in Eclipse for good
...s/attachment.cgi?id=196866
Install into your Eclipse.
Then you can export selected preferences to an .epf file.
Also add a preference (!) in Preferences > General > Common Preferences which will share your settings across newly created workspaces.
I use this all the time and though it is not...
For each row return the column name of the largest value
...s.method = "first")) %>% # or 'last'
filter(dept_rank == 1) %>%
select(-dept_rank)
# A tibble: 3 x 3
# Groups: id [3]
id dept cnt
<chr> <chr> <dbl>
1 2 V1 8.
2 3 V2 5.
3 1 V3 9.
# if you wanted to keep the original wide data f...
How do I copy directories recursively with gulp?
... is the important part. That expression is a glob which is a powerful file selection tool. For example, for copying only .js files use: 'input/folder/**/*.js'
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Text Editor which shows \r\n? [closed]
...tepad++ for this, open the View menu, open the Show Symbols slide out, and select either "Show all characters" or "Show end-of-line characters".
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Confused about stdin, stdout and stderr?
...se the same library functions and interfaces (printf,
scanf, read, write, select, etc.) without worrying about whether the I/O stream
is connected to a keyboard, a disk file, a socket, a pipe, or some other I/O abstraction.
Most programs need to read input, write output, and log errors, so stdi...
Most tricky/useful commands for gdb debugger [closed]
...n it in reverse
* reverse-finish -- Execute backward until just before the selected stack frame is called
* reverse-next ('rn') -- Step program backward, proceeding through subroutine calls.
* reverse-nexti ('rni') -- Step backward one instruction, but proceed through called subroutines.
* reverse-s...
Detecting when the 'back' button is pressed on a navbar
...navigationItem.leftBarButtonItem = backButton
}
// Then handle the button selection
func goBack() {
// Here we just remove the back button, you could also disabled it or better yet show an activityIndicator
self.navigationItem.leftBarButtonItem = nil
someData.saveInBackground { (success...
Test for existence of nested JavaScript object key
...th Claudiu's modification which is also significantly more performant than selected answer. See jsperf here jsperf.com/check-if-deep-property-exists-with-willnotthrow
– netpoetica
Nov 27 '14 at 5:35
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