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What is the difference D3 datum vs. data?
...rs here on SO are not complete as they only cover the case when you invoke selection.data and selection.datum with an input data parameter. Even in that scenario, the two behave differently if the selection is a single element versus when it contains multiple elements. Moreover, both of these method...
Get selected option from select element
I am trying to get the selected option from a dropdown and populate another item with that text, as follows. IE is barking up a storm and it doesn't work in Firefox:
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Regex lookahead, lookbehind and atomic groups
...tive or negative) and discards the matched portion. They don't consume any character - the matching for regex following them (if any), will start at the same cursor position.
Read regular-expression.info for more details.
Positive lookahead:
Syntax:
(?=REGEX_1)REGEX_2
Match only if REGEX_...
How do I replace multiple spaces with a single space in C#?
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@Oscar Joel’s code isn’t a simple loop through all characters! It’s a hidden nested loop that has a quadratic worst case. This regular expression, by contrast, is linear, only builds up a single string (= drastically reduced allocation costs compared to Joel’s code) and ...
How to make an Android Spinner with initial text “Select One”?
I want to use a Spinner that initially (when the user has not made a selection yet) displays the text "Select One". When the user clicks the spinner, the list of items is displayed and the user selects one of the options. After the user has made a selection, the selected item is displayed in the Spi...
How to set the first option on a select box using jQuery?
I have two HTML select boxes. I need to reset one select box when I make a selection in another.
17 Answers
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Check if a Windows service exists and delete in PowerShell
...ove-WmiObject -InputObject $s3
Remove-WmiObject : Access denied
At line:1 char:1
+ Remove-WmiObject -InputObject $s3
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [Remove-WmiObject], ManagementException
+ FullyQualifiedErrorId : RemoveWMIManagementExcep...
Convert String to SecureString
...d kept there in plaintext until garbage collection). However, you can add characters to a SecureString by appending them.
var s = new SecureString();
s.AppendChar('d');
s.AppendChar('u');
s.AppendChar('m');
s.AppendChar('b');
s.AppendChar('p');
s.AppendChar('a');
s.AppendChar('s');
s.AppendChar('s...
How to disable text selection highlighting
...S standard way to disable the highlighting effect if the user accidentally selects the text?
48 Answers
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How to send data to local clipboard from a remote SSH session
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I often to this in vim. To do so, select what you want to copy in visual mode, then type: :'<,'>w !ssh desktop pbcopy
– Mike Brennan
Nov 30 '12 at 5:04
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