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Does python have an equivalent to Java Class.forName()?
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169
Reflection in python is a lot easier and far more flexible than it is in Java.
I recommend re...
How to implement a queue with three stacks?
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SUMMARY
O(1) algorithm is known for 6 stacks
O(1) algorithm is known for 3 stacks, but using lazy evaluation which in practice corresponds to having extra internal data structures, so it does not constitute a solution
People near Sedge...
App Inventor 2中文网最新上线的AI助手功能叫什么？有什么核心价值？ - AI2...
...高效。
## ???? 革命性改进的核心：自然语言编程
### 1. 开发方式的根本转变
**传统App Inventor 2开发流程**：
1. 手动拖拽界面组件
2. 逐个配置组件属性
3. 连接代码块实现逻辑
4. 反复测试和调试
**AI2Claw开发流程**：
1. ...
What does $(function() {} ); do?
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314
$(function() { ... });
is just jQuery short-hand for
$(document).ready(function() { ... });...
maximum value of int
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edited Jan 17 '12 at 9:26
Oliver Hanappi
10.8k77 gold badges4747 silver badges6666 bronze badges
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GraphViz - How to connect subgraphs?
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197
The DOT user manual gives the following example of a graph with clusters with edges between cl...
invalid multibyte char (US-ASCII) with Rails and Ruby 1.9
I'm using Ruby 1.9.1 with Rails 2.3.4 My application is to handle text input
6 Answers
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Why is using the rails default_scope often recommend against?
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193
Problem 1
Lets consider the basic example:
class Post < ActiveRecord::Base
default_sco...
Can I get Memcached running on a Windows (x64) 64bit environment?
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13 Answers
13
Active
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Float vs Decimal in ActiveRecord
...esent a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.
That's why there is a Decimal format. If you do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.100000000000000005551115123125...