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How do I use variables in Oracle SQL Developer?
...am using the SQL-Developer in Version 3.2. The other stuff didn't work for me, but this did:
define value1 = 'sysdate'
SELECT &&value1 from dual;
Also it's the slickest way presented here, yet.
(If you omit the "define"-part you'll be prompted for that value)
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Why does HTML5 form-validation allow emails without a dot?
I'm writing a very simple mock-up to demonstrate some HTML5 form-validation. However, I noticed the email validation doesn't check for a dot in the address, nor does it check for characters following said dot.
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How can I generate an MD5 hash?
Is there any method to generate MD5 hash of a string in Java?
34 Answers
34
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possible EventEmitter memory leak detected
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This is explained in the node eventEmitter documentation
What version of Node is this? What other code do you have? That isn't normal behavior.
In short, its: process.setMaxListeners(0);
Also see: node.js - request - How to “emitter.setMaxListeners()”?
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How do I horizontally center a span element inside a div
... links 'view website' and 'view project' inside the surrounding div. Can someone point out what I need to do to make this work?
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What's the difference between unit, functional, acceptance, and integration tests? [closed]
...ce, and integration testing (and any other types of tests that I failed to mention)?
8 Answers
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Is it possible to ping a server from Javascript?
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I have found someone that accomplishes this with a very clever usage of the native Image object.
From their source, this is the main function (it has dependences on other parts of the source but you get the idea).
function Pinger_ping(ip...
How to discard local commits in Git?
I'd been working on something, and decided it was completely screwed...after having committed some of it. So I tried the following sequence:
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Git Alias - Multiple Commands and Parameters
...to create an alias that uses both multiple Git commands and positional parameters. There are Stackoverflow pages for each, and it would appear painfully obvious to do both, but I am having trouble.
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Xcode changes unmodified storyboard and XIB files
...em. For example, the XML in the .storyboard file has its starting <document> tag's toolsVersion and systemVersion attributes altered by whatever configuration the most recent file manipulator happens to be running. Synchronizing everybody's Xcode versions precisely seems to help with to...