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(-2147483648> 0) returns true in C++?
-2147483648 is the smallest integer for integer type with 32 bits, but it seems that it will overflow in the if(...) sentence:
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How to solve error “Missing `secret_key_base` for 'production' environment” (Rails 4.1)
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I had the same problem and solved it by creating an environment variable to be loaded every time I logged in to the production server, and made a mini-guide of the steps to configure it:
I was using Rails 4.1 with Unicorn v4.8.2 and when I tried to deploy my...
Does Eclipse have line-wrap
I'm editing an XML file with the Eclipse IDE and need to input paragraphs of text. It doesn't seem that eclipse has a line-wrap feature though. Anyone knows if it does or if there's a plugin for that?
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How can I keep Bootstrap popovers alive while being hovered?
...trap popover to create a hover card showing user info, and I am triggering it on mouseover of a button. I want to keep this popover alive while the popover itself is being hovered, but it disappears as soon as the user stops hovering over the button. How can I do this?
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Lightweight Javascript DB for use in Node.js [closed]
Anybody know of a lightweight yet durable database, written in Javascript, that can be used with Node.js.
11 Answers
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What is Domain Driven Design?
...(in succinct terms) what exactly is domain driven design? I see the term quite a lot but really don't understand what it is or what it looks like. How does it differ from non-domain driven design?
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Why does Java's hashCode() in String use 31 as a multiplier?
... continual mentions on stackoverflow):
The value 31 was chosen because it is an odd prime. If it were even and the multiplication overflowed, information would be lost, as multiplication by 2 is equivalent to shifting. The advantage of using a prime is less clear, but it is traditional. A nice p...
Mac zip compress without __MACOSX folder?
When I compress files with the built in zip compressor in Mac OSX, it results in an extra folder titled "__MACOSX" created in the extracted zip.
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Detect backspace in empty UITextField
...when the Backspace / Delete key is pressed in the iPhone keyboard on a UITextField that is empty? I want to know when Backspace is pressed only if the UITextField is empty.
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How to run a single test with Mocha?
...cript regex as <pattern>. For instance, if we have test/mytest.js:
it('logs a', function(done) {
console.log('a');
done();
});
it('logs b', function(done) {
console.log('b');
done();
});
Then:
$ mocha -g 'logs a'
To run a single test. Note that this greps across the names of al...