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When is CRC more appropriate to use than MD5/SHA1?
...ght occur, for example, from network interference, line noise, distortion, etc.
CRC is computationally much less complex than MD5 or SHA1. Using a hash function like MD5 is probably overkill for random error detection. However, using CRC for any kind of security check would be much less secure than...
What does the tilde (~) mean in my composer.json file?
...e ~2.3 does not allow versions below 2.3 whereas 2.* allows 2.0, 2.1, 2.2, etc
– AlterPHP
Jun 11 '15 at 14:22
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Loop through all nested dictionary values?
...e is a dictionary I want to go into it and print out its key value pairs...etc. Any help?
12 Answers
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How to use the “number_to_currency” helper method in the model rather than view?
...on’t see creating the data for a report and generating the (html|pdf|csv|etc.) view of that data as a single responsibility any more than I do for, e.g., a person and an HTML person show page.
– Andrew Marshall
Jun 12 '15 at 13:36
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How do I make and use a Queue in Objective-C?
...iety of implementations of queues, as well as stacks, deques, sorted sets, etc. For your purposes, CHCircularBufferQueue is significantly faster (i.e. provable with benchmarks) and more readable (admittedly subjective) than using an NSMutableArray.
One big advantage of using a native Objective-C cl...
Nginx 403 error: directory index of [folder] is forbidden
.../home/www/
So, my user name is "user1" (from above)
2: Changed user in /etc/nginx/nginx.conf
# user www-data;
user user1;
3: Reloaded the nginx
sudo nginx -s reload
Additionally, I have applied file/folder permissions (before I did above 3 steps)
(755 to my directory, say /dir1/) & ...
What's the use of ob_start() in php?
...d to have Javascript or HTML as a string in my PHP, constantly escaping \" etc, which is annoying
– J-Dizzle
Nov 5 '14 at 17:14
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Comparing mongoose _id and strings
...lts.userId is a valid identifier with results.userId instanceof ObjectID.
Etc.
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How can you find and replace text in a file using the Windows command-line environment?
... Can any sort of pattern matching be done here? Wildcards, Regex etc?
– Keyo
Apr 19 '12 at 21:51
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What are the differences between numpy arrays and matrices? Which one should I use?
...tiply (reduce) two tensors (scalar product,
matrix vector multiplication etc.).
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