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TSQL Pivot without aggregate function
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that actually wont work if you have 2 costumers with the same first name
– Leonardo
Feb 20 '15 at 18:38
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Convert String to Calendar Object in Java
I am new to Java, usually work with PHP.
8 Answers
8
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What is the perfect counterpart in Python for “while not EOF”
To read some text file, in C or Pascal, I always use the following snippets to read the data until EOF:
7 Answers
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How to pattern match using regular expression in Scala?
...ter match {
case Pattern(c) => c bound to capture group here
case _ =>
}
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Create a dictionary with list comprehension
...(key)) for key in keys)
In simple cases you don't need a comprehension at all...
But if you already have iterable(s) of keys and/or values, just call the dict built-in directly:
1) consumed from any iterable yielding pairs of keys/vals
dict(pairs)
2) "zip'ped" from two separate iterables of keys/v...
Filter rows which contain a certain string
...n easily extend to more than one column.
Below also a solution with filter_all in order to find the string in any column,
using diamonds as example, looking for the string "V"
library(tidyverse)
String in only one column
# for only one column... extendable to more than one creating a column list in...
AttributeError(“'str' object has no attribute 'read'”)
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The problem is that for json.load you should pass a file like object with a read function defined. So either you use json.load(response) or json.loads(response.read()).
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Git hangs while writing objects
...d in my situation (old school solution none the less but a fresh restart really helped).
– twknab
Mar 23 '17 at 16:59
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Is there a way to make npm install (the command) to work behind proxy?
...roxy variable in a .npmrc file but it does not work. Trying to avoid manually downloading all require packages and installing.
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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
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Try this:
String after = before.trim().replaceAll(" +", " ");
See also
String.trim()
Returns a copy of the string, with leading and trailing whitespace omitted.
regular-expressions.info/Repetition
No trim() regex
It's also possible to do this with just one re...