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Using usort in php with a class private function
...on merchantSort($a,$b) {
return ...// the sort
}
And use an array for the second parameter:
$array = $this->someThingThatReturnAnArray();
usort($array, array('ClassName','merchantSort'));
share
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Why does PostgreSQL perform sequential scan on indexed column?
...ndex scan.
This is because an index scan requires several IO operations for each row (look up the row in the index, then retrieve the row from the heap). Whereas a sequential scan only requires a single IO for each row - or even less because a block (page) on the disk contains more than one row,...
Join strings with a delimiter only if strings are not null or empty
...f your definition of "empty" is different, then you'll have to provide it, for example:
[...].filter(x => typeof x === 'string' && x.length > 0)
will only keep non-empty strings in the list.
--
(obsolete jquery answer)
var address = "foo";
var city;
var state = "bar";
var zip;
...
Rails nested form with has_many :through, how to edit attributes of join model?
...u edit the attributes of a join model when using accepts_nested_attributes_for?
3 Answers
...
Is PHP's count() function O(1) or O(n) for arrays?
... calls php_count_recursive(), which in turn calls zend_hash_num_elements() for non-recursive array, which is implemented this way:
ZEND_API int zend_hash_num_elements(const HashTable *ht)
{
IS_CONSISTENT(ht);
return ht->nNumOfElements;
}
So you can see, it's O(1) for $mode = COUNT_NOR...
Why doesn't Mockito mock static methods?
...that's what Mockito does if I'm not mistaken). Both approaches do not work for static members, since you can't override them using inheritance.
The only way to mock statics is to modify a class' byte code at runtime, which I suppose is a little more involved than inheritance.
That's my guess at it...
git: difference between “branchname” and “refs/heads/branchname”
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A ref is anything pointing to a commit, for example, branches (heads), tags, and remote branches. You should see heads, remotes, and tags in your .git/refs directory, assuming you have all three types of refs in your repository.
refs/heads/0.58 specifies a branch n...
Is the NOLOCK (Sql Server hint) bad practice?
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With NOLOCK hint, the transaction isolation level for the SELECT statement is READ UNCOMMITTED. This means that the query may see dirty and inconsistent data.
This is not a good idea to apply as a rule. Even if this dirty read behavior is OK for your mission critical web b...
No module named setuptools
...
I was going to vote you down for not providing the command to install setuptools but you really do need to go to that URL to see how to install it on your specific system.
– rob
May 2 '16 at 19:53
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What is the difference between `git fetch origin` and `git remote update origin`?
...tead of git fetch was actually recommending it without a remote name, just for the sake of fetching all, not just the one named as an argument. This is equivalent to git fetch --all.
I should add the caveat that fetch and remote update didn't actually use the same codepath until v1.6.6.1 (released ...