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String, StringBuffer, and StringBuilder
...ingBuilder/Buffer and that is to reduce or eliminate the re-allocation and array copy of the regular String concatenation behavior.
– user177800
Jun 4 '10 at 4:21
1
...
How to create a jQuery plugin with methods?
...dOrOptions] ) {
return methods[ methodOrOptions ].apply( this, Array.prototype.slice.call( arguments, 1 ));
} else if ( typeof methodOrOptions === 'object' || ! methodOrOptions ) {
// Default to "init"
return methods.init.apply( this, arguments );
...
How to determine whether a Pandas Column contains a particular value
...e option is to see if it's in unique values:
In [21]: s.unique()
Out[21]: array(['a', 'b', 'c'], dtype=object)
In [22]: 'a' in s.unique()
Out[22]: True
or a python set:
In [23]: set(s)
Out[23]: {'a', 'b', 'c'}
In [24]: 'a' in set(s)
Out[24]: True
As pointed out by @DSM, it may be more effici...
Ruby capitalize every word first letter
...method syntax in map is a concise way to call a method on each item in the array. You can then call join to turn that array into a string. The * ' ' is an alternative way to call join. You can think of it as multiplying the items in the array together to create a string.
– Andr...
Fastest way to reset every value of std::vector to 0
...ine TEST_METHOD 1
const size_t TEST_ITERATIONS = 100000;
const size_t TEST_ARRAY_SIZE = 10000;
int main(int argc, char** argv) {
std::vector<int> v(TEST_ARRAY_SIZE, 0);
for(size_t i = 0; i < TEST_ITERATIONS; ++i) {
#if TEST_METHOD == 1
memset(&v[0], 0, v.size() * size...
When is each sorting algorithm used? [closed]
...ar time as well.
Also you need at least n extra space for the intermediate array and it is stable obviously.
/**
* Some VMs reserve some header words in an array.
* Attempts to allocate larger arrays may result in
* OutOfMemoryError: Requested array size exceeds VM limit
*/
private static final int...
What are the benefits of functional programming? [closed]
...d of creating a for-loop with an iterator variable and marching through an array doing something to each cell, you'd say the equivalent of "this label refers to a version of this array where this function has been done on all the elements."
Functional programming moves more basic programming ideas ...
窝窝与众美联合并 新公司命名“众美窝窝” - 资讯 - 清泛网 - 专注C/C++及内核技术
...。
这些措施已初见成效。窝窝2014年Q4财报显示，其平台使用费收入占比已经超过50%。
二、依托大数据分析实现产业链价值最大化。
餐饮行业本就是一个流量中心，也是线下最大的数据中心和社交中心，可以说餐饮行业就是一...
Split string with dot as delimiter
... of text like in a,b,c,, (where delimiter is ,) split at first will create array like ["a" "b" "c" "" ""] but since in most cases we don't really need these trailing empty strings it also removes them automatically for us. So it creates another array without these trailing empty strings and returns ...
Access POST values in Symfony2 request object
...ll be removed in 3.0, see documentation
$form->getData();
gives you an array for the form parameters
from symfony2 book page 162 (Chapter 12: Forms)
[...] sometimes, you may just want to use a form without a class, and get back an array of the submitted
data. This is actually really easy:
public...