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How to get random value out of an array?
... 1)];
or you could use the rand and count functions to select a random index.
$array = array("one", "two", "three", "four", "five", "six");
echo $array[rand(0, count($array) - 1)];
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汇编语言超浓缩教程（汇编入门必备） - C/C++ - 清泛网 - 专注C/C++及内核技术
...址指针寄存器，可用作SS的一个相对基址位置；SI（Source Index）：源变址寄存器可用来存放相对于DS段之源变址指针；DI（Destination Index）：目的变址寄存器，可用来存放相对于 ES 段之目的变址指针。还有一个标志寄存器FR（Flag Reg...
PHP date() format when inserting into datetime in MySQL
... cases if you rely on an ORM to manage the database. Solid SQL with a well indexed relational database is not slow.
– mopsyd
May 1 '15 at 19:37
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A top-like utility for monitoring CUDA activity on a GPU
...e nVidia dropped support for some cards. Check this link forums.nvidia.com/index.php?showtopic=205165
– jmsu
Nov 24 '11 at 11:23
...
Output first 100 characters in a string
...python tutorial:
Degenerate slice indices are handled
gracefully: an index that is too large
is replaced by the string size, an
upper bound smaller than the lower
bound returns an empty string.
So it is safe to use x[:100].
...
Test if a vector contains a given element
...with which if you just want to find the elements not in Tset? You can just index pop directly; pop[!pop%in%Tset]
– Houshalter
Feb 20 '17 at 23:11
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How to access the first property of a Javascript object?
...; //returns 'someVal'
Using this you can access also other properties by indexes. Be aware tho! Object.keys return order is not guaranteed as per ECMAScript however unofficially it is by all major browsers implementations, please read https://stackoverflow.com/a/23202095 for details on this.
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How to enable NSZombie in Xcode?
...r more information, check out this CocoaDev page: http://www.cocoadev.com/index.pl?NSZombieEnabled
Also, this process will become much easier with the release of 10.6 and the next versions of Xcode and Instruments. Just saying'. =)
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Is there an interactive way to learn Vim? [closed]
...pt.php?script_id=3409
Screencasts:
http://derekwyatt.org/vim/tutorials/index.html
http://vimcasts.org
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How to tell if a string contains a certain character in JavaScript?
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To find "hello" in your_string
if (your_string.indexOf('hello') > -1)
{
alert("hello found inside your_string");
}
For the alpha numeric you can use a regular expression:
http://www.regular-expressions.info/javascript.html
Alpha Numeric Regular Expression
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