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How to tell which version of a gem a rails app is using
...
(Or in one of the config/environments/* files, depending on your RAILS_ENV.)
– John Hyland
Oct 26 '09 at 19:39
2...
Why should I use a semicolon after every function in javascript?
...n-standard.
However semicolons are always recommended where you use FunctionExpressions, for example:
var myFn = function () {
//...
};
(function () {
//...
})();
If you omit the semicolon after the first function in the above example, you will get completely undesired results:
var myFn = ...
Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...ork server program that shall handle 1000 clients connected in parallel:
One thread per connection (can be blocking I/O, but can also be non-blocking I/O).
Each thread requires memory resources (also kernel memory!), that is a disadvantage. And every additional thread means more work for the sched...
Is there a “standard” format for command line/shell help text?
... each:
having a short description
showing the default value, if there is one
showing the possible values, if that applies
Note that if an option can accept a short form (e.g. -l) or a long form (e.g. --list), include them together on the same line, as their descriptions will be the same
Brief ind...
Jquery bind double click and single click separately
... $this.removeClass('clicked');
alert("Just one click!");
//your code for single click
}
}, 500);
}
});
Try it
http://jsfiddle.net/calterras/xmmo3esg/
...
Path.Combine for URLs?
...re details:
Url.Combine is basically a Path.Combine for URLs, ensuring one
and only one separator character between parts:
var url = Url.Combine(
"http://MyUrl.com/",
"/too/", "/many/", "/slashes/",
"too", "few?",
"x=1", "y=2"
// result: "http://www.MyUrl.com/too/many/slashes...
Set ImageView width and height programmatically?
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Vote up because one day you were my boss and I'm still learning from you Hakim :)
– Sami Eltamawy
May 5 '15 at 8:40
10
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When to use Common Table Expression (CTE)
...ould need to use them. They would seem to be redundant as the same can be done with derived tables. Is there something I am missing or not understanding well? Can someone give me a simple example of limitations with regular select, derived or temp table queries to make the case of CTE? Any simple ex...
Using a ListAdapter to fill a LinearLayout inside a ScrollView layout
...
This is a down vote for me. Memory issues anyone? There is a reason we use adapters...
– Kevin Parker
May 2 '13 at 18:14
1
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Update statement with inner join on Oracle
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The second example worked for me. I like that one because it looks clean and readable. Don't know what the pros and cons are between the two when it comes to performance. But, I wasn't worried about that for now 'cuz I used this for a one off script to correct bad data....