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What are Transient and Volatile Modifiers?
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answered Aug 23 '10 at 6:03
Stephen CStephen C
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(Built-in) way in JavaScript to check if a string is a valid number
...xamples
isNaN(123) // false
isNaN('123') // false
isNaN('1e10000') // false (This translates to Infinity, which is a number)
isNaN('foo') // true
isNaN('10px') // true
Of course, you can negate this if you need to. For example, to implement the IsNumeric example you gav...
When would you use .git/info/exclude instead of .gitignore to exclude files?
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206
The advantage of .gitignore is that it can be checked into the repository itself, unlike .git/i...
Foreign keys in mongo?
...ones"})
> db.foo.find()
{ "_id" : ObjectId("4df6539ae90592692ccc9940"), "group" : "phones" }
{ "_id" : ObjectId("4df6540fe90592692ccc9941"), "group" : "phones" }
>db.foo.find({'_id':ObjectId("4df6539ae90592692ccc9940")})
{ "_id" : ObjectId("4df6539ae90592692ccc9940"), "group...
How do RVM and rbenv actually work?
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answered Feb 23 '12 at 22:20
Sam StephensonSam Stephenson
3,87222 gold badges1414 silver badges77 bronze badges
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Truncating long strings with CSS: feasible yet?
...rflow: ellipsis is now supported as of Firefox 7 (released September 27th 2011). Yay! My original answer follows as a historical record.
Justin Maxwell has cross browser CSS solution. It does come with the downside however of not allowing the text to be selected in Firefox. Check out his guest post...
UITableViewHeaderFooterView: Unable to change background color
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20 Answers
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Active
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phpinfo() - is there an easy way for seeing it?
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10
Don't forget to secure it, as output of phpinfo() should not be publicly accessible.
– binaryLV
Aug 2...
Do regular expressions from the re module support word boundaries (\b)?
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>>> y = k.search( x)
>>> y
<_sre.SRE_Match object at 0x100418850>
Also forgot to mention, you should be using raw strings in your code
>>> x = 'one two three'
>>> y = re.search(r"\btwo\b", x)
>>> y
<_sre.SRE_Match object at 0x100418a58>
&g...
MySQL Results as comma separated list
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250
You can use GROUP_CONCAT to perform that, e.g. something like
SELECT p.id, p.name, GROUP_CONCAT...