大约有 30,000 项符合查询结果(耗时:0.0394秒) [XML]
How to format a number as percentage in R?
...) function.
label_percent() returns a function, so to use it, you need an extra pair of parentheses.
library(scales)
x <- c(-1, 0, 0.1, 0.555555, 1, 100)
label_percent()(x)
## [1] "-100%" "0%" "10%" "56%" "100%" "10 000%"
Customize this by adding arguments inside the first s...
Counting the number of True Booleans in a Python List
...reinforce that the concept of "true" is more complex; with a little bit of extra code (i.e. using bool()) you can make the solution more robust and more general.
– Ned Deily
Oct 7 '12 at 5:03
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Make body have 100% of the browser height
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This solution results in extra scroll on mobile (Chrome, Android) because it calculates viewport height without taking the toolbar into account.
– int_index
Feb 4 '19 at 10:00
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String contains another string [duplicate]
How can I check if a string contains another string instead of using "==" to compare the whole string?
1 Answer
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C#: How to convert a list of objects to a list of a single property of that object?
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List<string> firstNames = people.Select(person => person.FirstName).ToList();
And with sorting
List<string> orderedNames = people.Select(person => person.FirstName).OrderBy(name => name).ToList();
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How do I join two SQLite tables in my Android application?
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You need rawQuery method.
Example:
private final String MY_QUERY = "SELECT * FROM table_a a INNER JOIN table_b b ON a.id=b.other_id WHERE b.property_id=?";
db.rawQuery(MY_QUERY, new String[]{String.valueOf(propertyId)});
Use ? bindings instead of putting values into raw ...
What SOAP client libraries exist for Python, and where is the documentation for them? [closed]
...corator). Ladon exposes more interfaces than SOAP at the same time without extra user code needed.
pysimplesoap: very lightweight but useful for both client and server - includes a web2py server integration that ships with web2py.
SOAPpy: Distinct from the abandoned SOAPpy that's hosted at the ZSI l...
SqlDataAdapter vs SqlDataReader
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Actually, with a little bit of extra code you certainly can run linq queries (or, at least one query) on a datareader. Just use an iterator block to yield return the DataReader cast as an IDataRecord inside your while (reader.Read()) loop.
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What is the best way to deal with the NSDateFormatter locale “feechur”?
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what will be the date formatter for "NSString *dateStr = @"2014-04-05T04:00:00.000Z";" ?
– Agent Chocks.
May 22 '14 at 11:59
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How to size an Android view based on its parent's dimensions
...not work for this scenario, but @M.Schenk's comment does. It also saves an extra layout pass. You should also post it as an answer for visibility.
– dokkaebi
Jan 10 '13 at 16:32
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