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To ternary or not to ternary? [closed]
I'm personally an advocate of the ternary operator: () ? : ; I do realize that it has its place, but I have come across many programmers that are completely against ever using it, and some that use it too often.
...
How to grep Git commit diffs or contents for a certain word?
...S (using --pickaxe-regex), we do so using an example diff and git diff invocation involving "regexec", "regexp", "regmatch", ...
The example is correct, but we can make it easier to untangle by avoiding writing "regex.*" unless it's really needed to make our point.
Use some made-up, non-re...
Foreign keys in mongo?
...
> db.foo.find()
{ "_id" : ObjectId("4df6539ae90592692ccc9940"), "group" : "phones" }
{ "_id" : ObjectId("4df6540fe90592692ccc9941"), "group" : "phones" }
>db.foo.find({'_id':ObjectId("4df6539ae90592692ccc9940")})
{ "_id" : ObjectId("4df6539ae90592692ccc9940"), "group" : "ph...
How to split a string into a list?
...rds such as we're.
>>> text
"'Oh, you can't help that,' said the Cat: 'we're all mad here. I'm mad. You're mad.'"
>>> text.split()
["'Oh,", 'you', "can't", 'help', "that,'", 'said', 'the', 'Cat:', "'we're", 'all', 'mad', 'here.', "I'm", 'mad.', "You're", "mad.'"]
>>> im...
Is it valid to replace http:// with // in a ?
...ocol, calling it "protocol relative" makes more sense. I've never heard of ftp or http being called "schemes"...
– Cerin
Oct 30 '13 at 15:15
...
How does Bluebird's util.toFastProperties function make an object's properties “fast”?
... an instance
function ic() { return typeof receiver.foo; } // perform access
ic();
ic();
return o;
eval("o" + o); // ensure no dead code elimination
}
Sans one or two small optimizations - all the below is still valid.
Let's first discuss what it does and why that's faster and ...
For each row in an R dataframe
...ve a dataframe, and for each row in that dataframe I have to do some complicated lookups and append some data to a file.
9 ...
Cannot push to Git repository on Bitbucket
...ntityFile ~/.ssh/id_rsa" >> ~/.ssh/config
Confirm the contents:
$ cat ~/.ssh/config
Host bitbucket.org
IdentityFile ~/.ssh/id_rsa
The single space before "IdentityFile" is required.
Check you are starting the SSH agent every time you run GitBash:
$ cat ~/.bashrc
If you see a func...
What's an object file in C?
...ject file.
If you have an a.c source file, to create its object file with GCC you should run:
gcc a.c -c
The full process would be: preprocessor (cpp) would run over a.c. Its output (still source) will feed into the compiler (cc1). Its output (assembly) will feed into the assembler (as), which will ...
How can I extract a predetermined range of lines from a text file on Unix?
...echoing the input as output, which you clearly don't want; the numbers indicate the range of lines to make the following command operate on; the command p prints out the relevant lines.
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