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How to delete migration files in Rails 3
...our table or columns.
Another great reference for migrations is: http://guides.rubyonrails.org/migrations.html
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In Vim, is there a way to paste text in the search line?
...lIns or CtrlC after selecting) and then, when in the command/search line, middle-clicking (or ShiftIns or CtrlV).
Another way, is to write your command/search line in the text buffer with all the editing available in text buffers, starting with : and all, then, on the line, do:
"add@a
which will...
MySQL - Make an existing Field Unique
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But removes all the duplicates including those outside the columns
– Biasi Wiga
Mar 17 at 12:13
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How to get current formatted date dd/mm/yyyy in Javascript and append it to an input [duplicate]
I would like to add a current date to a hidden HTML tag so that it can be sent to the server:
7 Answers
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Web安全测试之XSS - 更多技术 - 清泛网 - 专注C/C++及内核技术
...string <scritp>") 就可以了。 （需要引用System.Web程序集）
Fiddler中也提供了很方便的工具, 点击Toolbar上的"TextWizard" 按钮
XSS 攻击场景
1. Dom-Based XSS 漏洞 攻击过程如下
Tom 发现了Victim.com中的一个页面有XSS漏洞，
例如: http://vict...
Pretty print in MongoDB shell as default
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(note: this is answer to original version of the question, which did not have requirements for "default")
You can ask it to be pretty.
db.collection.find().pretty()
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How can I hide an HTML table row so that it takes up no space?
How can I hide an HTML table row <tr> so that it takes up no space? I have several <tr> 's set to style="display:none;" , but they still affect the size of the table and the table's border reflects the hidden rows.
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How do I escape a single quote ( ' ) in JavaScript? [duplicate]
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You should always consider what the browser will see by the end. In this case, it will see this:
<img src='something' onmouseover='change(' ex1')' />
In other words, the "onmouseover" attribute is just change(, and there's another "attrib...
VIM: Deleting from current position until a space
... confronted with a nested object that I'd like to delete from code in the middle of a line like this:
6 Answers
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How do I change the background color with JavaScript?
...roundColor=BackgroundColor //changing bg color
To change an element with ID
document.getElementById("ElementId").style.backgroundImage=imageUrl
document.getElementById("ElementId").style.backgroundColor=BackgroundColor
for elements with same class
var elements = document.getElementsByClass...