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How do I automatically update a timestamp in PostgreSQL
...the time of the actual current moment, (2) the time the statement started, and (3) the time the transaction started. The example shown here is start of current transaction. You may or may not want that as opposed to the other two possibilities.
– Basil Bourque
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Why can't I define a static method in a Java interface?
...ic interface methods were initially considered as a small language change, and then there was an official proposal to add them in Java 7, but it was later dropped due to unforeseen complications.
Finally, Java 8 introduced static interface methods, as well as override-able instance methods with a d...
What is the best django model field to use to represent a US dollar amount?
...ber accurate to cents), format it for output to users in different places, and use it to calculate other numbers.
5 Answers...
Why am I getting an Exception with the message “Invalid setup on a non-virtual (overridable in VB) m
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Moq cannot mock non-virtual methods and sealed classes. While running a test using mock object, MOQ actually creates an in-memory proxy type which inherits from your "XmlCupboardAccess" and overrides the behaviors that you have set up in the "SetUp" method. And...
How to know what the 'errno' means?
...s useful if you're formatting the error message for something other than standard error output.
For example:
#include <errno.h>
#include <string.h>
/* ... */
if(read(fd, buf, 1)==-1) {
printf("Oh dear, something went wrong with read()! %s\n", strerror(errno));
}
Linux also supp...
How to get default gateway in Mac OSX
... when Time Warner's modem decided it wanted the IP my router used to have, and ifconfig lied about the gateway.
– Chris Doggett
Jun 20 '13 at 3:05
add a comment
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Do regular expressions from the re module support word boundaries (\b)?
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ahh after yours and Bolo's suggestion, it was because I wasn't using a raw string. Thanks!
– D.C.
Oct 22 '10 at 8:46
9
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Embedding SVG into ReactJS
... any namespaced (colon-separated) attribute, e.g. xlink:href, remove the : and capitalize the second part of the attribute, e.g. xlinkHref. Here’s an example of an svg with <defs>, <use>, and inline styles:
function SvgWithXlink (props) {
return (
<svg
width...
Twitter Bootstrap: div in container with 100% height
Using twitter bootstrap (2), I have a simple page with a nav bar, and inside the container I want to add a div with 100% height (to the bottom of the screen). My css-fu is rusty, and I can't work this out.
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How to check if std::map contains a key without doing insert?
The only way I have found to check for duplicates is by inserting and checking the std::pair.second for false , but the problem is that this still inserts something if the key is unused, whereas what I want is a map.contains(key); function.
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