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What is the use of the @ symbol in PHP?
... even if it is just a 3rdparty error - then it's just fine and you're done fast. ;-) Moreover, it's better to add enough details to the error log, so developers are able to decide easily if a log entry is something that must be checked further or if it's just a 3rdparty failure that is out of the de...
MySQL “Group By” and “Order By”
... the concatenation of the fields you can index it and the query will be as fast as if the group by was over just the field you actually wanted to MAX(). You can even use it to get the maximum of multiple fields. I use it to do queries against multi-dimensional trees expresssed as nested sets.
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HTML-encoding lost when attribute read from input field
...is function which does what's needed.
It's arguably simpler (and possibly faster) than any of the workarounds for the whitespace-stripping issue - and it encodes quote marks, which is essential if you're going to use the result inside an attribute value for example.
function htmlEscape(str) {
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Hashing a string with Sha256
... password needs to be significantly slow, to prevent hackers from guessing fast. Use Bcrypt, or Scrypt for better security.
– Ton Snoei
Jun 28 '17 at 13:42
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Do spurious wakeups in Java actually happen?
... asynchronously because there are problems if my system does not read them fast enough.
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How to round up to the nearest 10 (or 100 or X)?
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Vectorize(roundUpNice) is quite fast =) +1 Anyway.
– mbq
Jun 24 '11 at 9:40
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How to do an update + join in PostgreSQL?
... Not sure why, but the CTE version of this query is way way faster than the "plain join" solutions above
– paul.ago
Apr 7 '16 at 9:12
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How to set default font family for entire Android app
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@tomrozb :D i just realized, that the last fast changes i did, were because of your comments! as you have enough points, you are welcome to optimize the code example yourself. otherwise we will still talk about the topic in a few years, when nobody cares about smartph...
Is it good practice to use java.lang.String.intern()?
...()
when you need speed since you can compare strings by reference (== is faster than equals)
Are there side effects not mentioned in the Javadoc?
The primary disadvantage is that you have to remember to make sure that you actually do intern() all of the strings that you're going to compare. ...
Is there a splice method for strings?
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It is faster to slice the string twice, like this:
function spliceSlice(str, index, count, add) {
// We cannot pass negative indexes directly to the 2nd slicing operation.
if (index < 0) {
index = str.length + index;
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