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HTML 5: Is it , , or ?
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@Marco I don't think document.write is terribly fast in comparison to actual (x)html (because it has to be executed). In any case, Javascript isn't necessarily available on all computers so websites that excessively rely on them aren't very flexible. Also, html doesn't h...
Are “elseif” and “else if” completely synonymous?
...s (PSR-#).
Zend2 and Symfony2 already follows PSR-0.
There's no hard and fast rules for styles, but you can try and follow as much of PSR-2 as you can.
There's a comment on else if vs elseif in PSR-2:
The keyword elseif SHOULD be used instead of else if so that all
control keywords look lik...
Can two different strings generate the same MD5 hash code?
... True, I updated my post. The 2004 random collision attack is very fast indeed. The 2007 MD5 prefix collision attack can take days -- but is generally much more useful to an attacker
– intgr
Nov 18 '09 at 15:53
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What is the difference between Cloud, Grid and Cluster? [closed]
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Cloud is a marketing term, with the bare minimum feature relating to fast automated provisioning of new servers. HA, utility billing, etc are all features people can lump on top to define it to their own liking.
Grid [Computing] is an extension of clusters where multiple loosely coupled syste...
Move an array element from one array position to another
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My 2c. Easy to read, it works, it's fast, it doesn't create new arrays.
function move(array, from, to) {
if( to === from ) return array;
var target = array[from];
var increment = to < from ? -1 : 1;
for(var k = from; k != ...
Explanation of JSONB introduced by PostgreSQL
...er are duplicate keys. Accessing individual elements in the JSONB field is fast as it doesn't require parsing the JSON text all the time. On output, JSON data is reconstructed and initial formatting is lost.
IMO, there is no significant reason for not using jsonb once it is available, if you are w...
ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
...excellent support for MySQL and high performance on indexing , research is fast but maybe a little less than Lucene.
However it's the right choice if you need quickly indexing every day and use a MySQL db.
share
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Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
...f 'ABC' in myDict: x = myDict['ABC']; else: x = 'NO_ABC' is actually often faster than using get, unfortunately. Not saying this is the most important criteria, but it's something to be aware of.
– agf
Sep 30 '11 at 0:33
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How to replace all occurrences of a string?
...he general pattern is
str.split(search).join(replacement)
This used to be faster in some cases than using replaceAll and a regular expression, but that doesn't seem to be the case anymore in modern browsers.
Benchmark: https://jsperf.com/replace-all-vs-split-join
Conclusion: If you have a performan...
Converting Secret Key into a String and Vice Versa
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To show how much fun it is to create some functions that are fail fast I've written the following 3 functions.
One creates an AES key, one encodes it and one decodes it back. These three methods can be used with Java 8 (without dependence of internal classes or outside dependencies):
publ...