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When to add what indexes in a table in Rails
...unique)" to the automatically created "id" column?
No, same as above
If I add index to two foreign keys at once (add_index (:users, [:category_id, :state_id]), what happens? How is this different from adding the index for each key?
Then the index is a combined index of the two columns. That ...
Javascript - sort array based on another array
...{
var found = false;
items = items.filter(function(item) {
if(!found && item[1] == key) {
result.push(item);
found = true;
return false;
} else
return true;
})
})
result.forEach(function(item) {
document.writel...
What Makes a Good Unit Test? [closed]
... in the code, ensure that you test all key paths and scenarios.. Use tools if you must to know untested regions
Repeatable: Tests should produce the same results each time.. every time. Tests should not rely on uncontrollable params.
Independent: Very important.
Tests should test only one thing a...
How do I check if a number evaluates to infinity?
...
if (result == Number.POSITIVE_INFINITY || result == Number.NEGATIVE_INFINITY)
{
// ...
}
You could possibly use the isFinite function instead, depending on how you want to treat NaN. isFinite returns false if your numbe...
Kill process by name?
I'm trying to kill a process (specifically iChat). On the command line, I use these commands:
15 Answers
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What's the best way to store a group of constants that my program uses? [closed]
...
+1, but even better if you can pull these from a resource file for localization.
– Joel Coehoorn
Nov 12 '09 at 17:46
17
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How to use a RELATIVE path with AuthUserFile in htaccess?
...lative paths for AuthUserFile:
File-path is the path to the user file. If it is not absolute (i.e., if it doesn't begin with a slash), it is treated as relative to the ServerRoot.
You have to accept and work around that limitation.
We're using IfDefine together with an apache2 command line ...
How can I get the version defined in setup.py (setuptools) in my package?
...ire("MyProject")[0].version
Store version string for use during install
If you want to go the other way 'round (which appears to be what other answer authors here appear to have thought you were asking), put the version string in a separate file and read that file's contents in setup.py.
You cou...
Comparing strings by their alphabetical order
...g.compareTo might or might not be what you need.
Take a look at this link if you need localized ordering of strings.
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How do I check if an element is hidden in jQuery?
...to find a match, which satisfies the passed parameter. It will return true if there is a match, otherwise return false.
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