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How to escape @ characters in Subversion managed file names?
... operations, appending the '@' symbol to the end of a file or URL argument allows you to target a specific revision of that file. For example, "svn info test.txt@1234" will give information about test.txt as it existed in revision 1234.
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vector::at vs. vector::operator[]
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I'd say the exceptions that vector::at() throws aren't really intended to be caught by the immediately surrounding code. They are mainly useful for catching bugs in your code. If you need to bounds-check at runtime because e.g. the index comes from user input, you're indeed best of...
Difference between attr_accessor and attr_accessible
...d that makes a getter and a setter. attr_accessible is a Rails method that allows you to pass in values to a mass assignment: new(attrs) or update_attributes(attrs).
Here's a mass assignment:
Order.new({ :type => 'Corn', :quantity => 6 })
You can imagine that the order might also have a d...
MySQL INSERT INTO table VALUES.. vs INSERT INTO table SET
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I think the extension is intended to allow a similar syntax for inserts and updates. In Oracle, a similar syntactical trick is:
UPDATE table SET (col1, col2) = (SELECT val1, val2 FROM dual)
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How to find reason of failed Build without any error or warning
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Excellent find Richard - Really useful information when you set both verbosity levels to diagnostic
– Dai Bok
Oct 20 '16 at 8:38
3
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How can I update NodeJS and NPM to the next versions?
I just installed Node.js and npm (for additional modules).
47 Answers
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What does the CSS rule “clear: both” do?
... be explaining how the floats work here (in detail), as this question generally focuses on Why use clear: both; OR what does clear: both; exactly do...
I'll keep this answer simple, and to the point, and will explain to you graphically why clear: both; is required or what it does...
Generally desi...
Node.js - use of module.exports as a constructor
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CommonJS modules allow two ways to define exported properties. In either case you are returning an Object/Function. Because functions are first class citizens in JavaScript they to can act just like Objects (technically they are Objects). Tha...
Which sort algorithm works best on mostly sorted data? [closed]
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Performance degrades really badly if your data is ever not nearly sorted though. I would still not use it, personally.
– Blorgbeard is out
Oct 21 '08 at 4:39
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JSON Array iteration in Android/Java
...or iterator() {
return this.myArrayList.iterator();
}
This will make all instances of JSONArray iterable, meaning that the for (Object foo : bar) syntax will now work with it (note that foo has to be an Object, because JSONArrays do not have a declared type). All this works because the JSONArr...