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PHP substring extraction. Get the string before the first '/' or the whole string
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262
Use explode()
$arr = explode("/", $string, 2);
$first = $arr[0];
In this case, I'm using th...
How can I disable logging of asset pipeline (sprockets) messages in Ruby on Rails 3.1?
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382
Place the following code in config/initializers/quiet_assets.rb
if Rails.env.development?
Rai...
Python Sets vs Lists
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236
It depends on what you are intending to do with it.
Sets are significantly faster when it com...
How to make a chain of function decorators?
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2951
Check out the documentation to see how decorators work. Here is what you asked for:
from fun...
What do (lambda) function closures capture?
...e a new scope each time you create the lambda:
>>> adders = [0,1,2,3]
>>> for i in [0,1,2,3]:
... adders[i] = (lambda b: lambda a: b + a)(i)
...
>>> adders[1](3)
4
>>> adders[2](3)
5
The scope here is created using a new function (a lambda, for brevity...
Generate a heatmap in MatPlotLib using a scatter data set
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12 Answers
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What regular expression will match valid international phone numbers?
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23 Answers
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C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...opy过去编译和调试，我把代码列在下面：
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#include <stdio.h>
struct str{
int len;
char s[0];
};
struct foo {
struct str *a;
};
int main(int argc, char...
Group by with multiple columns using lambda
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258
var query = source.GroupBy(x => new { x.Column1, x.Column2 });
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How to get number of entries in a Lua table?
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132
You already have the solution in the question -- the only way is to iterate the whole table with...