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Meaning of Open hashing and Closed hashing
...; every object is stored directly at an index in the hash table's internal array. Note that this is only possible by using some sort of open addressing strategy. This explains why "closed hashing" and "open addressing" are synonyms.
Contrast this with open hashing - in this strategy, none of the ob...
How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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MySQL integer field is returned as string in PHP
...u fetched a row in Postgres you coudl be sure that the elements in the row array had appropriate data types. Now I'm having to write code to manually cast every element to the data type I'm expecting.
– GordonM
Mar 25 '11 at 10:14
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PHP code to convert a MySQL query to CSV [closed]
...dn\'t fetch records');
$num_fields = mysql_num_fields($result);
$headers = array();
for ($i = 0; $i < $num_fields; $i++) {
$headers[] = mysql_field_name($result , $i);
}
$fp = fopen('php://output', 'w');
if ($fp && $result) {
header('Content-Type: text/csv');
header('Content-D...
“where 1=1” statement [duplicate]
... Awesome. Now I can build my complex queries with strings rather than arrays ;). I did, however, want to verify with an EXPLAIN query whether it triggered "Using Where." Indeed, it does not.
– landons
Nov 16 '11 at 11:57
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Go Unpacking Array As Arguments
So in Python and Ruby there is the splat operator (*) for unpacking an array as arguments. In Javascript there is the .apply() function. Is there a way of unpacking an array/slice as function arguments in Go? Any resources for this would be great as well!
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One-liner to recursively list directories in Ruby?
What is the fastest, most optimized, one-liner way to get an array of the directories (excluding files) in Ruby?
9 Answer...
Stop Mongoose from creating _id property for sub-document array items
If you have subdocument arrays, Mongoose automatically creates ids for each one. Example:
6 Answers
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Get name of caller function in PHP?
... Many solutions seen on the web get the second element of the backtrace array to get the instance caller: can we be so sure about it? Is the second element always the one we are searching for? I thought a __construct() which includes inside another call such as parent::__construct() could shift o...
Why does parseInt yield NaN with Array#map?
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The callback function in Array.map has three parameters:
From the same Mozilla page that you linked to:
callback is invoked with three arguments: the value of the element, the index of the element, and the Array object being traversed."
So if ...