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How do I test if a variable is a number in Bash?
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842
One approach is to use a regular expression, like so:
re='^[0-9]+$'
if ! [[ $yournumber =~ $re...
Set up DNS based URL forwarding in Amazon Route53 [closed]
...the <ReplaceKeyWith> element if you need this functionality.
Step 4: Make Note of Your Redirect Bucket's "Endpoint"
Make note of the Static Website Hosting "endpoint" that Amazon automatically created for this bucket. You'll need this for later, so highlight the entire URL, then copy and...
add created_at and updated_at fields to mongoose schemas
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As of Mongoose 4.0 you can now set a timestamps option on the Schema to have Mongoose handle this for you:
var thingSchema = new Schema({..}, { timestamps: true });
You can change the name of the fields used like so:
var thingSchema = n...
Is there a built in function for string natural sort?
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answered Aug 24 '13 at 5:38
SethMMortonSethMMorton
32.3k1010 gold badges5353 silver badges7171 bronze badges
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Why does typeof NaN return 'number'?
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edited May 10 '10 at 9:43
answered May 10 '10 at 9:35
Ch...
String literals: Where do they go?
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edited Apr 7 '10 at 4:34
answered Apr 7 '10 at 4:16
R...
How do I remove the file suffix and path portion from a path string in Bash?
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edited Oct 14 '16 at 14:36
answered Sep 24 '08 at 3:54
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Why does integer overflow on x86 with GCC cause an infinite loop?
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24
Oh wow. I wasn't aware of -fwrapv. Thanks for pointing this out.
– Mysticial
Oct 7 '11 at 2:38
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Traits in PHP – any real world examples/best practices? [closed]
Traits have been one of the biggest additions for PHP 5.4. I know the syntax and understand the idea behind traits, like horizontal code re-use for common stuff like logging, security, caching etc.
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Elegant ways to support equivalence (“equality”) in Python classes
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342
Consider this simple problem:
class Number:
def __init__(self, number):
self.numb...