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Installing Apple's Network Link Conditioner Tool
... Xcode
Go to the below link
https://developer.apple.com/download/more/?q=Additional%20Tools
Install the dmg file, select hardware from installer
select Network Link conditioner prefpane
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Why should I use Google's CDN for jQuery?
...but I've been wondering: why should I depend on Google's server to host jQuery for my site?
7 Answers
...
Illegal pattern character 'T' when parsing a date string to java.util.Date
...s as what the format represents.
But it was written before Java 8 was ubiquitous so it uses the old
classes that you should not be using if you are using Java 8 or
higher.
This works with the input with the trailing Z as demonstrated:
In the pattern the T is escaped with ' on either side...
What is the difference between HashSet and List?
...eLine(hashSet1[i]);
hashSet1[i] would produce an error:
Cannot apply indexing with [] to an expression of type
'System.Collections.Generic.HashSet'
You can use foreach statement:
foreach (var item in hashSet1)
Console.WriteLine(item);
You can not add duplicated items to HashSet wh...
What is the difference between git am and git apply?
... (e.g. the output of git diff) and applies it to the working directory (or index, if --index or --cached is used).
git am takes a mailbox of commits formatted as an email messages (e.g. the output of git format-patch) and applies them to the current branch.
git am uses git apply behind the scenes,...
C++ templates Turing-complete?
..., int N, typename = void>
struct GetItem {
static_assert(N > 0, "index cannot be negative");
static_assert(GetSize<List>::value > 0, "index too high");
typedef typename GetItem<typename List::tail, N-1>::type type;
};
template<typename List>
struct GetItem<...
Why there is no ForEach extension method on IEnumerable?
...e ForEach<> extension to be a little nicer than having to manage the index in a regular foreach myself:
public static int ForEach<T>(this IEnumerable<T> list, Action<int, T> action)
{
if (action == null) throw new ArgumentNullException("action");
var index = 0;
...
Detect if homebrew package is installed
... pkg in macvim ngrep other needed packages; do
if brew list -1 | grep -q "^${pkg}\$"; then
echo "Package '$pkg' is installed"
else
echo "Package '$pkg' is not installed"
fi
done
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Git: Ignore tracked files
...
Sure.
git update-index --assume-unchanged [<file> ...]
To undo and start tracking again:
git update-index --no-assume-unchanged [<file> ...]
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mysql - how many columns is too many?
...oning. Here are a few:
If you have tables with many rows, modifying the indexes can take a very long time, as MySQL needs to rebuild all of the indexes in the table. Having the indexes split over several table could make that faster.
Depending on your queries and column types, MySQL could be wri...