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Why do we copy then move?
...h as in:
std::string s = "Hello";
S obj(s); // s is an lvalue, this won't compile!
If S only had a constructor that accepts rvalues, the above would not compile.
Won't a copy be expensive, especially given something like std::string?
If you pass an rvalue, that will be moved into str, and t...
Which concurrent Queue implementation should I use in Java?
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community wiki
2 revs, 2 users 86%Yishai
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Cross-Domain Cookies
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Yes, it is absolutely possible to get the cookie from domain1.com by domain2.com. I had the same problem for a social plugin of my social network, and after a day of research I found the solution.
First, on the server side you need to have the following headers:
header("Access-Control...
Adding up BigDecimals using Streams
... edit
I see that you have added new data, therefore the new answer will become:
List<Invoice> invoiceList = new ArrayList<>();
//populate
Function<Invoice, BigDecimal> totalMapper = invoice -> invoice.getUnit_price().multiply(invoice.getQuantity());
BigDecimal result = invoice...
Execute and get the output of a shell command in node.js
... a node.js, I'd like to find a way to obtain the output of a Unix terminal command. Is there any way to do this?
5 Answers
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String strip() for JavaScript? [duplicate]
... example:
" dog".trim() === "dog" //true
EDIT: Took J-P's suggestion to combine the regex patterns into one. Also added the global modifier per Christoph's suggestion.
Took Matthew Crumley's idea about sniffing on the trim function prior to recreating it. This is done in case the version of Ja...
How to use sessions in an ASP.NET MVC 4 application?
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@JobertEnamno is it safe to store the value which comes from WebSecurity.CurrentUserId so it doesn't pull it from database multiple times (I found it is very costly)?
– Andrius Naruševičius
Feb 7 '14 at 11:06
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How to grep (search) committed code in the Git history
...code in a file sometime in the past. Can I grep in the content (not in the commit messages)?
15 Answers
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How do I tell git to always select my local version for conflicted merges on a specific file?
...a file whenever there is a conflict.
(as Brian Vandenberg notes in the comments, 'ours' and 'theirs' are here used for a merge.
They are reversed for a rebase: see "Why is the meaning of “ours” and “theirs” reversed with git-svn", which uses a rebase, "git rebase, keeping track of 'loc...
create a trusted self-signed SSL cert for localhost (for use with Express/Node)
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O = Organization Name
OU = Organizational Unit
CN = www.localhost.com
[v3_req]
keyUsage = critical, digitalSignature, keyAgreement
extendedKeyUsage = serverAuth
subjectAltName = @alt_names
[alt_names]
DNS.1 = www.localhost.com
DNS.2 = localhost.com
DNS.3 = localhost
An explanation of this...