大约有 10,000 项符合查询结果（耗时：0.0244秒） [XML]
split string only on first instance - java
...2);
As String.split(java.lang.String regex, int limit) explains:
The array returned by this method contains each substring of this string that is terminated by another substring that matches the given expression or is terminated by the end of the string. The substrings in the array are in the ...
insert multiple rows via a php array into mysql
...undreds of rows at one, is to take advantage of the implode() function and array assignment.
$sql = array();
foreach( $data as $row ) {
$sql[] = '("'.mysql_real_escape_string($row['text']).'", '.$row['category_id'].')';
}
mysql_query('INSERT INTO table (text, category) VALUES '.implode(',', $s...
Map function in MATLAB?
...
The short answer: the built-in function arrayfun does exactly what your map function does for numeric arrays:
>> y = arrayfun(@(x) x^2, 1:10)
y =
1 4 9 16 25 36 49 64 81 100
There are two other built-in functions that beha...
SparseArray vs HashMap
...veral reasons why HashMap s with integer keys are much better than SparseArray s:
7 Answers
...
What do querySelectorAll and getElementsBy* methods return?
... querySelectorAll ) work the same as getElementById or do they return an array of elements?
10 Answers
...
How can I get PHPUnit MockObjects to return different values based on a parameter?
...backStub()
{
$stub = $this->getMock(
'SomeClass', array('doSomething')
);
$stub->expects($this->any())
->method('doSomething')
->will($this->returnCallback('callback'));
// $stub->doSomething() returns cal...
How do I get an object's unqualified (short) class name?
...:class));
}
}
$a = new ClassA();
$num = 100000;
$rounds = 10;
$res = array(
"Reflection" => array(),
"Basename" => array(),
"Explode" => array(),
);
for($r = 0; $r < $rounds; $r++){
$start = microtime(true);
for($i = 0; $i < $num; $i++){
$a->getC...
How do I do a bulk insert in mySQL using node.js
...
Bulk inserts are possible by using nested array, see the github page
Nested arrays are turned into grouped lists (for bulk inserts), e.g.
[['a', 'b'], ['c', 'd']] turns into ('a', 'b'), ('c', 'd')
You just insert a nested array of elements.
An example is giv...
angular ng-repeat in reverse
How can i get a reversed array in angular?
i'm trying to use orderBy filter, but it needs a predicate(e.g. 'name') to sort:
...
Check if object value exists within a Javascript array of objects and if not add a new object to arr
If I have the following array of objects:
18 Answers
18
...