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How to explicitly discard an out argument?
...ia. I've updated my answer. Apparently, the wildcard character was changed from * to _. Sorry it took so long.
– Nolonar
Apr 20 '17 at 14:31
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React.js: Identifying different inputs with one onChange handler
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Deprecated solution
valueLink/checkedLink are deprecated from core React, because it is confusing some users. This answer won't work if you use a recent version of React. But if you like it, you can easily emulate it by creating your own Input component
Old answer content:
What y...
What method in the String class returns only the first N characters?
...o string manipulations in C#, I miss the good old Left and Right functions from Visual Basic, which are much simpler to use than Substring.
So in most of my C# projects, I create extension methods for them:
public static class StringExtensions
{
public static string Left(this string str, int l...
Waiting on a list of Future
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@VSEWHGHP From the javadoc: If any of the given CompletableFutures complete exceptionally, then the returned CompletableFuture also does so, with a CompletionException holding this exception as its cause.
– Andrej...
How do I add a password to an OpenSSH private key that was generated without a password?
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Try the command ssh-keygen -p -f keyfile
From the ssh-keygen man page
-p Requests changing the passphrase of a private key file instead of
creating a new private key. The program will prompt for the file
containing the private key, for the ...
Replace non-numeric with empty string
...ou out. Thanks for the answer though -- I really like to see confirmation from multiple sources.
– Matt Dawdy
Nov 4 '08 at 17:04
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new Date() works differently in Chrome and Firefox
...h, unfortunately the date-parsing algorithms are implementation-dependent. From the specification of Date.parse (which is used by new Date):
The String may be interpreted as a local time, a UTC time, or a time in some other time zone, depending on the contents of the String. The function first a...
Subset of rows containing NA (missing) values in a chosen column of a data frame
We have a data frame from a CSV file. The data frame DF has columns that contain observed values and a column ( VaR2 ) that contains the date at which a measurement has been taken. If the date was not recorded, the CSV file contains the value NA , for missing data.
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How do you list the active minor modes in emacs?
...ing its source code I realized that it gets the list of active minor modes from both minor-mode-list and minor-mode-alist. Using 3rd-party dash.el list manipulation library I came with this code:
(--filter (and (boundp it) (symbol-value it)) minor-mode-list)
So, for example, to disable all minor ...
how to remove the dotted line around the clicked a element in html
...cumulatively stuck being unoutlined). This temporarily removes the outline from the last clicked element while keeping it on others, so you can still know what you're tabbing through.
– Max Starkenburg
Apr 27 '16 at 20:56
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