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Output array to CSV in Ruby
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330
To a file:
require 'csv'
CSV.open("myfile.csv", "w") do |csv|
csv << ["row", "of", "CSV...
How to add 10 days to current time in Rails
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Use
Time.now + 10.days
or even
10.days.from_now
Both definitely work. Are you sure you're in Rails and not just Ruby?
If you definitely are in Rails, where are you trying to run this from? Note that Active Support has to be loaded.
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Saving grid.arrange() plot to file
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edited Nov 6 '14 at 0:27
answered Jun 12 '13 at 21:07
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Relative imports in Python 3
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AyaAya
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Green Bars in Visual Studio 2010
I am wondering what these greens things are in Visual Studio 2010. What are they for? They look pretty random but of course they have to have some meaning. Can any one tell me?
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Removing rounded corners from a element in Chrome/Webkit
...elect> element. I've tried getting rid of this by applying a radius of 0px through my external stylesheet, as well inline on the element itself; I've tried both border-radius:0px and -webkit-border-radius:0px; and I've tried the even more specific border-top-left-radius:0px (along with it...
Add a space (“ ”) after an element using :after
...ne boxes.
And from The 'white-space' processing model,
If a space (U+0020) at the end of a line has 'white-space' set to
'normal', 'nowrap', or 'pre-line', it is also removed.
Solution
So if you don't want the space to be removed, set white-space to pre or pre-wrap.
h2 {
text-deco...
Transactions in .net
What are the best practices to do transactions in C# .Net 2.0. What are the classes that should be used? What are the pitfalls to look out for etc. All that commit and rollback stuff. I'm just starting a project where I might need to do some transactions while inserting data into the DB. Any respons...
How to find a table having a specific column in postgresql
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edited Aug 29 '13 at 10:46
answered Aug 29 '13 at 10:39
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编程基础与事件状态 05：用过程集中刷新界面 · App Inventor 2 中文网
... 编程基础与事件状态 05：用过程集中刷新界面 课程首页 · 全部知识课程 · 返回专题主页
这课解决什么
先预测，再运行
开始实战
新增或调整的组件...