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Ruby ampersand colon shortcut [duplicate]
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Fun to see the [*3..7] syntax. I didn't realize you could splat like that!
– Ben Coppock
Jul 11 '19 at 4:54
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How do I find the maximum of 2 numbers?
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Use the builtin function max.
Example:
max(2, 4) returns 4.
Just for giggles, there's a min as well...should you need it. :P
share
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imp...
Ruby array to string conversion
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I'll join the fun with:
['12','34','35','231'].join(', ')
EDIT:
"'#{['12','34','35','231'].join("', '")}'"
Some string interpolation to add the first and last single quote :P
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Good beginners tutorial to socket.io? [closed]
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A 'fun' way to learn socket.io is to play BrowserQuest by mozilla and look at its source code :-)
http://browserquest.mozilla.org/
https://github.com/mozilla/BrowserQuest
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How to sort ArrayList in decreasing order?
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Java 8
well doing this in java 8 is so much fun and easier
Collections.sort(variants,(a,b)->a.compareTo(b));
Collections.reverse(variants);
Lambda expressions rock here!!!
in case you needed a more than one line logic for comparing a and b you could write it li...
print memory address of Python variable [duplicate]
...4
print hex(id(x))
Gave me:
0x9cf10c
Which is what you want, right?
(Fun fact, binding two variables to the same int may result in the same memory address being used.)
Try:
x = 4
y = 4
w = 9999
v = 9999
a = 12345678
b = 12345678
print hex(id(x))
print hex(id(y))
print hex(id(w))
print hex(id(...
boost自定义composite_key_compare比较函数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...e "boost/multi_index/sequenced_index.hpp"
#include "boost/multi_index/mem_fun.hpp"
using boost::multi_index_container;
using namespace boost::multi_index;
typedef char IDType[81];
struct TParam
{
IDType ID;
bool IsValid;
};
typedef TParam* TParam_p;
struct TParamIDIndex { };
st...
Async Procedures 拓展：异步任务拓展，异步处理耗时任务 - App Inventor 2...
...r=var(--secondary)]Capture[color=var(--secondary-high)]352×100 4.28 KB
FUNCTIONS :
[color=var(--tertiary)][color=var(--secondary)]Capture[color=var(--secondary-high)]368×539 18.2 KB
HOW TO USE?Call a Procedure From Anywhere On You app using this block
[color=var(--tertiary)][color=var(--se...
首次打开app时，提示打开蓝牙权限，打开后点击开始搜索，设备列表没有显示...
本帖最后由 fun_hcf 于 2025-08-11 09:48 编辑
首次打开app时，提示打开蓝牙权限，打开后点击开始搜索，设备列表没有显示蓝牙设备，而且app卡住了点不动，后面需要先在手机系统设置先打开蓝牙，然后启动app才能搜索到设备，请...
Is “double hashing” a password less secure than just hashing it once?
...use an ordered list of the most likely passwords. They start with "password123" and progress to less frequently used passwords.
Let's say an attackers list is long, with 10 billion candidates; suppose also that a desktop system can compute 1 million hashes per second. The attacker can test her who...