大约有 40,000 项符合查询结果（耗时：0.0286秒） [XML]
Finding ALL duplicate rows, including “elements with smaller subscripts”
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Hold on, I just ran a test and found I was wrong: x <- c(1:9, 7:10, 5:22); y <- c(letters, letters[1:5]); test <- data.frame(x, y); test[duplicated(test$x) | duplicated(test$x, fromLast=TRUE), ] Returned all three of he copies of 7, 8, an...
Mocking Extension Methods with Moq
...Here is the description of the tool:
Moles is a lightweight framework for test stubs and detours in .NET that is based on delegates.
Moles may be used to detour any .NET method, including non-virtual/static methods in sealed types.
You can use Moles with any testing framework (it's independent abo...
How to check if a query string value is present via JavaScript?
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Cleaner code? ... Why not just return the indexOf test, instead of placing it in a totally useless preliminary IF statement.
– James
Aug 21 '09 at 23:09
4
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Is JavaScript supported in an email message?
...ipt from the mail before handing it to the browser. So JS does not work. I tested Gmail in Firefox 56 and Chrome 61. Also checked the code in webmaster tools, the JS code is removed.
– Christopher K.
Nov 6 '17 at 14:12
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Query for documents where array size is greater than 1
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I believe this is the fastest query that answers your question, because it doesn't use an interpreted $where clause:
{$nor: [
{name: {$exists: false}},
{name: {$size: 0}},
{name: {$size: 1}}
]}
It means "all documents except those with...
How to run `rails generate scaffold` when the model already exists?
... available to you.
Rails:
controller
generator
helper
integration_test
mailer
migration
model
observer
performance_test
plugin
resource
scaffold
scaffold_controller
session_migration
stylesheets
If you'd like to generate a controller scaffold for your model, see scaf...
Test if something is not undefined in JavaScript
...for me:
typeof possiblyUndefinedVariable !== "undefined"
I will have to test that in other browsers and see how things go I suppose.
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Remove json element
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I don't get this answer. Where's "foo" in the test data?
– Tony
Oct 4 '13 at 2:45
9
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What is the max size of localStorage values?
...e. User can even choose "Unlimited storage" for a domain.
You can easily test localStorage limits/quota yourself.
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Deciding between HttpClient and WebClient
...--------------+--------------------------------------------+
| Mocking and testing WebClient is difficult | Mocking and testing HttpClient is easy |
+--------------------------------------------+--------------------------------------------+
| Supports FTP | No suppo...