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How to use regex with find command?
I have some images named with generated uuid1 string. For example 81397018-b84a-11e0-9d2a-001b77dc0bed.jpg. I want to find out all these images using "find" command:
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How to get a random number in Ruby
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If you're not only seeking for a number but also hex or uuid it's worth mentioning that the SecureRandom module found its way from ActiveSupport to the ruby core in 1.9.2+. So without the need for a full blown framework:
require 'securerandom'
p SecureRandom.random_number(100) #...
How to do case insensitive string comparison?
... consider locale but if you are comparing machine generated values such as UUID then you might not. This why I use following function in my utils library (note that type checking is not included for performance reason).
function compareStrings (string1, string2, ignoreCase, useLocale) {
if (ign...
Best way to create unique token in Rails?
...lient id" to Google Analytics' measurement protocol. It's supposed to be a UUID, but I just take the first 32 chars of the hexdigest for any given IP.
– thekingoftruth
Jan 16 '15 at 19:22
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How to set a default value for a datetime column to record creation time in a migration?
... @SandipSubedi I realized that 5 minutes after my comment. Just like with uuid generation. Thanks!
– courtsimas
Aug 5 '19 at 19:07
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How do you serialize a model instance in Django?
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this fails with UUID fields, should be clear otherwise
– Alvin
Mar 7 '17 at 23:21
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unique object identifier in javascript
...put there next id of a stream of unique ids like
id = elem[ expando ] = ++uuid;
I'd suggest you use the same method as John Resig obviously knows all there is about JavaScript and his method is based on all that knowledge.
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How to get svn remote repository URL?
...t/foo.c
Repository Root: http://svn.red-bean.com/repos/test
Repository UUID: 5e7d134a-54fb-0310-bd04-b611643e5c25
Revision: 4417
Node Kind: file
Schedule: normal
Last Changed Author: sally
Last Changed Rev: 20
Last Changed Date: 2003-01-13 16:43:13 -0600 (Mon, 13 Jan 2003)
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JPA - Returning an auto generated id after persist()
...ity (or other flushed entities) is not in a valid state yet. A sequence or uuid generator is simpler and more efficient, and doesn't have these problems because the ID is generated and assigned before the entity is written to the database.
– JB Nizet
Apr 29 '16...
When to use “ON UPDATE CASCADE”
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What is "artificially system-generated" keys? UUIDs?
– HPWD
Jan 10 '18 at 0:17
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