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Could not open a connection to your authentication agent
...h-agent?
You might need to start ssh-agent before you run the ssh-add command:
eval `ssh-agent -s`
ssh-add
Note that this will start the agent for msysgit Bash on Windows. If you're using a different shell or operating system, you might need to use a variant of the command, such as those listed ...
Change IPython/Jupyter notebook working directory
... yes, it's probably not needed. It was a way to make a Unicode string in Python 2 (try type(u'bla') vs type('bla'). In Python 3 it's the same thing as the string expression without u (as all strings are Unicode).
– metakermit
Mar 9 '16 at 14:08
...
Why catch and rethrow an exception in C#?
...haps wrap the original exception in one of your own making:
public static string SerializeDTO(DTO dto) {
try {
XmlSerializer xmlSer = new XmlSerializer(dto.GetType());
StringWriter sWriter = new StringWriter();
xmlSer.Serialize(sWriter, dto);
return sWriter.ToString();
}...
How to sum all column values in multi-dimensional array?
...ing array_column() then at first you may consider to get all unique keys , and then get the sum for each key :
$final = array();
foreach($input as $value)
$final = array_merge($final, $value);
foreach($final as $key => &$value)
$value = array_sum(array_column($input, $key));
unset...
Why is SELECT * considered harmful?
...s more data to move from the database server to the client, slowing access and increasing load on your machines, as well as taking more time to travel across the network. This is especially true when someone adds new columns to underlying tables that didn't exist and weren't needed when the origina...
How to center buttons in Twitter Bootstrap 3?
... This is the one that worked for me. I tried the others above and it wouldn't center.
– mjwrazor
Oct 27 '16 at 13:41
...
Why Choose Struct Over Class?
... 1...10000000 {
y = y + Int10Struct(1)
}
}
func measure(name: String, @noescape block: () -> ()) {
let t0 = CACurrentMediaTime()
block()
let dt = CACurrentMediaTime() - t0
print("\(name) -> \(dt)")
}
Code can be found at https://github.com/knguyen2708/StructVsC...
How to determine the first and last iteration in a foreach loop?
... think downvoting should take place here as this is also working correctly and is still not so rubbish as using array_shift and array_pop. Though this is the solution I'd came up if I had to implement such a thing, I'd stick with the Rok Kralj's answer now on.
– shadyyx
...
How to call multiple JavaScript functions in onclick event?
...SomethingElse();"
But really, you're better off not using onclick at all and attaching the event handler to the DOM node through your Javascript code. This is known as unobtrusive javascript.
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WKWebView in Interface Builder
...func viewDidLoad() {
super.viewDidLoad()
if let url = URL(string: "https://google.com") {
let req = URLRequest(url: url)
webView?.load(req)
}
}
}
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