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Commit only part of a file in Git
...nted by lines beginning with "-". You can prevent staging their removal by converting the "-" to a " " (space).
modified content:
Modified content is represented by "-" lines (removing the old content) followed by "+" lines (adding the replacement content). You can prevent staging the modifica...
Get the length of a String
...0;, Snail 🐌, Penguin 🐧, Dromedary 🐪"
println("unusualMenagerie has \(count(unusualMenagerie)) characters")
// prints "unusualMenagerie has 40 characters"
right from the Apple Swift Guide
(note, for versions of Swift earlier than 1.2, this would be countElements...
Boolean literals in PowerShell
...valent.
Note: Never expect that string literal true can get automatically converted to boolean. For example, if I run the below command:
installmyapp.ps1 -cleanuprequired true
it fails to execute the script with the below error:
Cannot process argument transformation on parameter 'cleanupreq...
SQL Server IN vs. EXISTS Performance
...an overall large result set).
I believe the optimizer is smart enough to convert between "in" vs "exists" when there is a significant cost difference due to (1) and (2), otherwise it may just be used as a hint (e.g. exists to encourage use of an a seekable index on the right side).
Both forms c...
How can I remove a pytz timezone from a datetime object?
...you are using a library like arrow, then you can remove timezone by simply converting an arrow object to to a datetime object, then doing the same thing as the example above.
# <Arrow [2014-10-09T10:56:09.347444-07:00]>
arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')
# datetime.date...
How can I get Git to follow symlinks?
...
$ git add src/main/path/ConvertSymlinkToDir fatal: 'src/main/path/ConvertSymlinkToDir' is beyond a symbolic link
– user1767316
Jul 21 '17 at 14:04
...
Linq list of lists to single list
...
Here is a sample code for you:
List<int> listA = new List<int> { 1, 2, 3, 4, 5, 6 };
List<int> listB = new List<int> { 11, 12, 13, 14, 15, 16 };
List<List<int>> listOfLists = new List<List<int>> { listA, listB };
...
Turn a string into a valid filename?
...code is the following.
def slugify(value):
"""
Normalizes string, converts to lowercase, removes non-alpha characters,
and converts spaces to hyphens.
"""
import unicodedata
value = unicodedata.normalize('NFKD', value).encode('ascii', 'ignore')
value = unicode(re.sub('[^...
How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
...plement postfix in terms of prefix.
//
Number operator++ (int) // postfix ++
{
Number result(*this); // make a copy for result
++(*this); // Now use the prefix version to do the work
return result; // return the copy ...
What is the use of static variable in C#? When to use it? Why can't I declare the static variable in
...
Example without declaring it static:
public class Variable
{
public int i = 5;
public void test()
{
i = i + 5;
Console.WriteLine(i);
}
}
public class Exercise
{
static void Main()
{
Variable var = new Variable();
var.test();
Variab...