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Fastest way to convert string to integer in PHP
Using PHP, what's the fastest way to convert a string like this: "123" to an integer?
8 Answers
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Why does Python print unicode characters when the default encoding is ASCII?
..., I think we can stitch up an explanation.
By trying to print an unicode string, u'\xe9', Python implicitly try to encode that string using the encoding scheme currently stored in sys.stdout.encoding. Python actually picks up this setting from the environment it's been initiated from. If it can't ...
How do you create a dictionary in Java? [closed]
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You'll want a Map<String, String>. Classes that implement the Map interface include (but are not limited to):
HashMap
LinkedHashMap
Hashtable
Each is designed/optimized for certain situations (go to their respective docs for more info)....
Real World Example of the Strategy Pattern
... save a file, or make a webcall
Outputting: We need to output X as a plain string, but later may be a CSV, XML, JSON, etc.
Examples
I have a project where the users can assign products to people in a database. This assignment of a product to a person has a status which is either "Approved" or "...
How do you calculate program run time in python? [duplicate]
.../profile/index.html
http://www.doughellmann.com/PyMOTW/timeit/index.html
And the time module also might come in handy, although I prefer the later two recommendations for benchmarking and profiling code performance:
http://docs.python.org/library/time.html
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Is There a Better Way of Checking Nil or Length == 0 of a String in Ruby?
Is there a better way than the following to check to see if a string is nil OR has a length of 0 in Ruby?
16 Answers
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Create a dictionary on a list with grouping
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Just to make mquander's suggestion concrete:
var groupedDemoClasses = mySpecialVariableWhichIsAListOfDemoClass
.GroupBy(x => x.GroupKey)
.ToDictionary(gdc => gdc.Key, gdc =>...
Get all column names of a DataTable into string array using (LINQ/Predicate)
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Try this (LINQ method syntax):
string[] columnNames = dt.Columns.Cast<DataColumn>()
.Select(x => x.ColumnName)
.ToArray();
or in LINQ Query syntax:
string[] columnNames = (fr...
How to escape text for regular expression in Java
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Please not that this doesn’t escape the string itself, but wraps it using \Q and \E. This may lead to unexpected results, for example Pattern.quote("*.wav").replaceAll("*",".*") will result in \Q.*.wav\E and not .*\.wav, as you might expect.
–...
IEnumerable to string [duplicate]
...can't find a really easy way to convert an IEnumerable<char> to a string .
6 Answers
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