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When is CRC more appropriate to use than MD5/SHA1?
...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 a more complex hashing ...
URL Encode a string in jQuery for an AJAX request
...codeURIComponent works fine for me. we can give the url like this in ajax call.The code shown below:
$.ajax({
cache: false,
type: "POST",
url: "http://atandra.mivamerchantdev.com//mm5/json.mvc?Store_Code=ATA&Function=Module&Module_Code=thub_connector&Module_Function=THUB_R...
Regular expression to match DNS hostname or IP Address?
...o be escaped with \.
ValidHostnameRegex is valid as per RFC 1123. Originally, RFC 952 specified that hostname segments could not start with a digit.
http://en.wikipedia.org/wiki/Hostname
The original specification of
hostnames in RFC
952,
mandated that labels could not start
with a d...
HTML5 Pre-resize images before uploading
...
How do you handle the PHP part of it after you add it to the FormData()? You wouldn't be looking for $_FILES['name']['tmp_name'][$i], for example? I'm trying if(isset($_POST['image']))... but the dataurl not there.
– denikov
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What is the difference between XMLHttpRequest, jQuery.ajax, jQuery.post, jQuery.get
...w what these are, you should check HTTP protocol and learn a little. Internally these two functions use jQuery.ajax but they use particular settings that you don't have to set yourself thus simplifying GET or POST request compared to using jQuery.ajax. GET and POST being the most used HTTP methods a...
img tag displays wrong orientation
... Why in the world do images even have orientation metadata? If you really wanted to rotate the picture then wouldn't you just shift around the pixels and swap the width for the height?
– Jack Giffin
Oct 29 '17 at 1:02
...
MySQL Server has gone away when importing large sql file
I tried to import a large sql file through phpMyAdmin...But it kept showing error
19 Answers
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Is MVC a Design Pattern or Architectural pattern
...P ( view ), JavaBeans ( Model ), Servlet ( controller ). Same concept with all the famous php framework ( symphony, zend, cake etc. ). But nowaday frontend frameworks looks like back end application and modern javascript frameworks use mvc ( html your view, controller your script, and model your j...
How to find out element position in slice?
...
this does not find the original index; rather it loses all the indexes by re-ordering them
– newacct
Nov 29 '11 at 20:16
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Different types of thread-safe Sets in Java
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1) The CopyOnWriteArraySet is a quite simple implementation - it basically has a list of elements in an array, and when changing the list, it copies the array. Iterations and other accesses which are running at this time continue with the old array, avoiding necessity of synchronization between...