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How do I save a stream to a file in C#?
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Iterating Through a Dictionary in Swift
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Dictionaries in Swift (and other languages) are not ordered. When you iterate through the dictio...
How do I set a cookie on HttpClient's HttpRequestMessage
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Todd Menier
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answered Sep 11 '12 at 16:57
Darin Dimit...
How can I add an item to a SelectList in ASP.net MVC
... insert an item at the beginning of a SelectList with the default value of 0 and the Text Value of " -- Select One --"
13 A...
How to read data when some numbers contain commas as thousand separator?
...", and then convert the string to numeric using as.numeric:
y <- c("1,200","20,000","100","12,111")
as.numeric(gsub(",", "", y))
# [1] 1200 20000 100 12111
This was also answered previously on R-Help (and in Q2 here).
Alternatively, you can pre-process the file, for instance with sed in unix...
BigDecimal - to use new or valueOf
...an be somewhat unpredictable. One might assume that writing new BigDecimal(0.1) in Java creates a BigDecimal which is exactly equal to 0.1 (an unscaled value of 1, with a scale of 1), but it is actually equal to 0.1000000000000000055511151231257827021181583404541015625. This is because 0.1 cannot be...
How to change an input button image using CSS?
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answered Oct 12 '08 at 16:10
ceejayozceejayoz
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Set time to 00:00:00
...oblem resetting hours in Java. For a given date I want to set the hours to 00:00:00.
12 Answers
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Regular expression to allow spaces between words
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tl;dr
Just add a space in your character class.
^[a-zA-Z0-9_ ]*$
Now, if you want to be strict...
The above isn't exactly correct. Due to the fact that * means zero or more, it would match all of the following cases that one would not usually mean to match:
An empty str...
Can I multiply strings in Java to repeat sequences? [duplicate]
...es is the following one-liner:
new String(new char[generation]).replace("\0", "-")
Replace generation with number of repetitions, and the "-" with the string (or char) you want repeated.
All this does is create an empty string containing n number of 0x00 characters, and the built-in String#repla...