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How to make an array of arrays in Java
Hypothetically, I have 5 string array objects:
4 Answers
4
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Getter and Setter declaration in .NET [duplicate]
... a plain field:
public string MyField
But this field can be accessed by all outside users of your class. People can insert illegal values or change the value in ways you didn't expect.
By using a property, you can encapsulate the way your data is accessed. C# has a nice syntax for turning a fiel...
Example for boost shared_mutex (multiple reads/one write)?
I have a multithreaded app that has to read some data often, and occasionally that data is updated. Right now a mutex keeps access to that data safe, but it's expensive because I would like multiple threads to be able to read simultaneously, and only lock them out when an update is needed (the updat...
Caching a jquery ajax response in javascript/browser
... return localCache.data[url];
},
set: function (url, cachedData, callback) {
localCache.remove(url);
localCache.data[url] = cachedData;
if ($.isFunction(callback)) callback(cachedData);
}
};
$(function () {
var url = '/echo/jsonp/';
$('#ajaxButton').clic...
Difference between Role and GrantedAuthority in Spring Security
...thority as being a "permission" or a "right". Those "permissions" are (normally) expressed as strings (with the getAuthority() method). Those strings let you identify the permissions and let your voters decide if they grant access to something.
You can grant different GrantedAuthoritys (permissions...
Apply function to all elements of collection through LINQ [duplicate]
...ently started off with LINQ and its amazing. I was wondering if LINQ would allow me to apply a function - any function - to all the elements of a collection, without using foreach. Something like python lambda functions.
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Safe characters for friendly url [closed]
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To quote section 2.3 of RFC 3986:
"Characters that are allowed in a URI but do not have a reserved
purpose are called unreserved. These include uppercase and lowercase
letters, decimal digits, hyphen, period, underscore, and tilde."
ALPHA DIGIT "-" / "." / "_" / "~"
N...
What does __FILE__ mean in Ruby?
I see this all the time in Ruby:
4 Answers
4
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multiprocessing.Pool: When to use apply, apply_async or map?
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Back in the old days of Python, to call a function with arbitrary arguments, you would use apply:
apply(f,args,kwargs)
apply still exists in Python2.7 though not in Python3, and is generally not used anymore. Nowadays,
f(*args,**kwargs)
is preferred. The...
Why is it slower to iterate over a small string than a small list?
...nd with timeit and noticed that doing a simple list comprehension over a small string took longer than doing the same operation on a list of small single character strings. Any explanation? It's almost 1.35 times as much time.
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