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Spring Expression Language (SpEL) with @Value: dollar vs. hash ($ vs. #)
...e and complex. It can also handle property placeholders, and a lot more besides.
Both are valid, and neither is deprecated.
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What is the minimum length of a valid international phone number?
I need to validate user input of an international phone number. According to E.164 , the maximum length is 15 digits, but I was unable to find any information about the minimum. I consider digits only, no plus sign or separators.
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Difference between -pthread and -lpthread while compiling
...revious comments. I don't care at all about what happens if you don't provide -lpthread or some random other proprietary options. Only -lpthread is specified by POSIX to guarantee pthreads and that doesn't seems to be sufficient with gcc.
– fuz
Mar 8 '18 at 1...
Docker - a way to give access to a host USB or serial device?
Last time I checked, Docker didn't have any means to give container access to host serial or USB port . Is there a trick which allows doing that?
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Git merge without auto commit
...ge commit because there isn't actually a merge at all. This is in fact the ideal situation: fast-forwards are a Good Thing, and not having this extra "merge commit" Makes Sense. This is good default behavior and shouldn't be disabled. (In proper parlance, a fast-forward is a type of merge, but it i...
Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
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@NicNilov no dw I did think that though I just wanted to double check :)
– Mark
Dec 28 '17 at 20:04
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What is the best way to count “find” results?
...on? Your original solution is spawning a new process printf for every individual file found, and that's very expensive (as you've just found).
Note that this will overcount if you have filenames with newlines embedded, but if you have that then I suspect your problems run a little deeper.
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How can I install MacVim on OS X?
...mpile it (requiring the 4+ GB download of Xcode). Is this answer still valid?
– Wildcard
Sep 24 '16 at 9:46
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How to execute a java .class from the command line
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You have no valid main method... The signature should be:
public static void main(String[] args);
Hence, in your case the code should look like this:
public class Echo {
public static void main (String[] arg) {
System.out...
Escape regex special characters in a Python string
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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