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Count the items from a IEnumerable without iterating?
...
In regards to collections and arrays. If you happen to use a collection then use the .Count property as it always knows it's size. When querying collection.Count there is no additional computation, it simply returns the already known count. Same for Array...
Function return value in PowerShell
... to a variable and if more than the return value is returned the var is an array and the return value will be the last item in the array.
– DaSmokeDog
Feb 21 '19 at 19:08
1
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In PHP, what is a closure and why does it use the “use” identifier?
...examples than the above one. lets say you have to sort an multidimensional array by a sub-value, but the key changes.
<?php
function generateComparisonFunctionForKey($key) {
return function ($left, $right) use ($key) {
if ($left[$key] == $right[$key])
retu...
PHP function to make slug (URL string)
...uri_encode( $utf8_string, $length = 0 ) {
$unicode = '';
$values = array();
$num_octets = 1;
$unicode_length = 0;
$string_length = strlen( $utf8_string );
for ($i = 0; $i < $string_length; $i++ ) {
$value = ord( $utf8_string[ $i ] );
if ( $value < 128...
What does this square bracket and parenthesis bracket notation mean [first1,last1)?
...s 10 elements
How does this relate to Mathematics and Computer Science?
Array indexes tend to use a different offset depending on which field are you in:
Mathematics tends to be one-based.
Certain programming languages tends to be zero-based, such as C, C++, Javascript, Python, while other lang...
Parsing Visual Studio Solution files
... }
var projects = new List<SolutionProject>();
var array = (Array)s_SolutionParser_projects.GetValue(solutionParser, null);
for (int i = 0; i < array.Length; i++)
{
projects.Add(new SolutionProject(array.GetValue(i)));
}
this.Pro...
Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
...低级抽象，逐渐向高级抽象迭代。人类的逻辑思维，经常使用高度抽象的概念。
例如，从原始信号摄入开始（瞳孔摄入像素 Pixels），接着做初步处理（大脑皮层某些细胞发现边缘和方向），然后抽象（大脑判定，眼前的...
Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
...低级抽象，逐渐向高级抽象迭代。人类的逻辑思维，经常使用高度抽象的概念。
例如，从原始信号摄入开始（瞳孔摄入像素 Pixels），接着做初步处理（大脑皮层某些细胞发现边缘和方向），然后抽象（大脑判定，眼前的...
Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
...低级抽象，逐渐向高级抽象迭代。人类的逻辑思维，经常使用高度抽象的概念。
例如，从原始信号摄入开始（瞳孔摄入像素 Pixels），接着做初步处理（大脑皮层某些细胞发现边缘和方向），然后抽象（大脑判定，眼前的...
Deep Learning（深度学习）学习笔记整理系列之（一） - 大数据 & AI - 清泛...
...低级抽象，逐渐向高级抽象迭代。人类的逻辑思维，经常使用高度抽象的概念。
例如，从原始信号摄入开始（瞳孔摄入像素 Pixels），接着做初步处理（大脑皮层某些细胞发现边缘和方向），然后抽象（大脑判定，眼前的...