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Rollback a Git merge
...ommit has been exhaustively covered in other questions. When you do a fast-forward merge, the second one you describe, you can use git reset to get back to the previous state:
git reset --hard <commit_before_merge>
You can find the <commit_before_merge> with git reflog, git log, or, i...
Git keeps prompting me for a password
I've been using Git for a while now, but the constant requests for a password are starting to drive me up the wall.
28 Answ...
How to add default value for html ? [closed]
I want to set a default value for my html <textarea> . I read from a material that to add default value you have to do something like <textarea>This is default text</textarea> . I did that but it doesn't work. What's the right thing to do?
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Validate that end date is greater than start date with jQuery
...e it:
$("#EndDate").rules('add', { greaterThan: "#StartDate" });
or
$("form").validate({
rules: {
EndDate: { greaterThan: "#StartDate" }
}
});
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How do I convert a column of text URLs into active hyperlinks in Excel?
...a new column alongside your column of URLs.
In the new column type in the formula =HYPERLINK(A1) (replacing A1 with whatever cell you are interested in). Then copy the formula down the rest of the 200 entries.
NOTE: This solution does not work if the cell A1 contains a string longer than 255 chara...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
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创建一个测试数据表，sql如下：
CREATE TABLE users (
id INTEGER PRIMARY KEY,
name TEXT,
age INTEGER);
数据表信息
这时，可以查看一下表信息：
插入数据
往 users 表中插入一条测试数据...
How do I position one image on top of another in HTML?
... I am trying to avoid compositing (with ImageMagick and similar) due to performance issues.
10 Answers
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Relative URL to a different port number in a hyperlink?
...this could work, and I don't see why not because : is a reserved character for port separation inside the URI component, so the browser could realistically interpret this as a port relative to this URL, but unfortunately it doesn't and there's no way for it to do that.
You'll therefore need Javascr...
How to debug PDO database queries?
Before moving to PDO, I created SQL queries in PHP by concatenating strings. If I got database syntax error, I could just echo the final SQL query string, try it myself on the database, and tweak it until I fixed the error, then put that back into the code.
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MFC AFX_WM_CREATETOOLBAR消息相关 - C/C++ - 清泛网 - 专注C/C++及内核技术
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BEGIN_MESSAGE_MAP(CMainFrame, CMDIFrameWndEx)
ON_WM_CREATE()
ON_COMMAND(ID_WINDOW_MANAGER, &CMainFrame::OnWindowManager)
ON_COMMAND(ID_VIEW_CUSTOMIZE, &CMainFrame::OnViewCustomize)
ON_REGISTERED_MESSAGE(AFX_WM_CREATETOOLBAR, &CMainFrame::OnToolbarCreateNew)
END_MESSAGE_MAP()
触发事件： ...