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CREATE TABLE IF NOT EXISTS equivalent in SQL Server [duplicate]
... if not exists (select * from sys.tables t join sys.schemas s on (t.schema_id = s.schema_id) where s.name = 'myschema' and t.name = 'cars') create table myschema.cars ( Name varchar(64) not null )
– bart
Oct 22 '13 at 0:53
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Is there a way to rollback my last push to Git? [duplicate]
...te the last commit from master. Delete=remove from commit history. (not evident in your text that git revert will take off from history)
– Peter Krauss
Feb 16 '18 at 13:48
1
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Get the value of a dropdown in jQuery
I have a drop down that has an 'ID, Name' Pair.
11 Answers
11
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Submit form with Enter key without submit button? [duplicate]
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Don't forget to add the # in front of the input id!
– MadsterMaddness
Nov 4 '14 at 22:50
13
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Accessing JSON object keys having spaces [duplicate]
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The way to do this is via the bracket notation.
var test = {
"id": "109",
"No. of interfaces": "4"
}
alert(test["No. of interfaces"]);
For more info read out here:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects
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python .replace() regex [duplicate]
...> re.sub(r'a', 'b', 'banana')
'bbnbnb'
>>> re.sub(r'/\d+', '/{id}', '/andre/23/abobora/43435')
'/andre/{id}/abobora/{id}'
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Testing for empty or nil-value string [duplicate]
...lse (because of short-circuiting).
This should be sufficient:
variable = id if variable.nil? || variable.empty?
If you're working with Ruby on Rails, Object.blank? solves this exact problem:
An object is blank if it’s false, empty, or a whitespace string. For example, "", " ", nil, [], a...
check / uncheck checkbox using jquery? [duplicate]
...ou know, in HTML, it would look something like:
<input type="checkbox" id="myCheckbox" checked="checked" /> <!-- Checked -->
<input type="checkbox" id="myCheckbox" /> <!-- Unchecked -->
However, you cannot trust the .attr() method to get the value of the checkbox (if you n...
Swift equivalent of [NSBundle bundleForClass:[self class]]
... Autocomplete in the current version of Xcode acts like it has no idea what you're talking about, but it does indeed work.
– David Beck
Oct 7 '14 at 21:52
4
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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： ...