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Difference between single and double square brackets in Bash
...nsion.
expr a \< b > /dev/null: POSIX equivalent², see: How to test strings for lexicographic less than or equal in Bash?
&& and ||
[[ a = a && b = b ]]: true, logical and
[ a = a && b = b ]: syntax error, && parsed as an AND command separator cmd1 &&...
How to handle many-to-many relationships in a RESTful API?
...00:00:00Z',
}
This solution relies on REST resources only. Although some extra calls may be necessary to get data from players, teams or their relationship, all HTTP methods are easily implemented. POST, PUT, DELETE are simple and straightforward.
Whenever a relationship is created, updated or de...
Merge/flatten an array of arrays
...
Ahh, I found your error. You have an extra pair of square brackets in your notation, should be [].concat([1],[2,3],[4],...).
– Ryan Kennedy
Aug 6 '13 at 15:27
...
Why would I want stage before committing in Git?
...then you do your work, then you run git add, and then git commit. Why the extra git add step?
The secret here is what Git calls, variously, the index, or the staging area, or sometimes—rarely these days—the cache. These are all names for the same thing.
Edit: I think I may be confusing the te...
What is the best way to determine the number of days in a month with JavaScript?
...
To take away confusion I would probably make the month string based as it is currently 1 based.
function daysInMonth(month,year) {
monthNum = new Date(Date.parse(month +" 1,"+year)).getMonth()+1
return new Date(year, monthNum, 0).getDate();
}
daysInMonth('feb', 2015)
/...
How to make MySQL handle UTF-8 properly
... worry utf8mb4 taking extra storage when most text is ASCII. Although char strings are preallocated, varchar strings are not -- see the last few lines on this documentation page. For example, char(10) will be pessimistically reserve 40 bytes under utf8mb4, but varchar(10) will allocate bytes in kee...
Writing unit tests in Python: How do I start? [closed]
...d to work well. Finally, anyone who uses your code doesn't need to install extra packages.
– Jeyekomon
Jul 6 '18 at 15:04
...
What is the difference between List (of T) and Collection(of T)?
...s that it is returning a new instance. Note that for e.g. a Dictionary<string, List<string>> to return List<string> is just fine, since the dictionary's state only encapsulates the identities of the lists therein, rather than their contents.
– supercat
...
How to create PDF files in Python [closed]
...h the style and markup you want for you pdf document
Executing pdfkit.from_string(...) method by passing the rendered html as parameter
This way you get a pdf document with styling and images supported.
You can install it as follows :
using pip
pip install pdfkit
You will also need to install...
How to disable mouse scroll wheel scaling with Google Maps API
...
Keep it simple! Original Google maps variable, none of the extra stuff.
var mapOptions = {
zoom: 16,
center: myLatlng,
scrollwheel: false
}
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