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What are the benefits to marking a field as `readonly` in C#?
...t from other types of read-only semantics because it's enforced at runtime by the CLR. The readonly keyword compiles down to .initonly which is verifiable by the CLR.
The real advantage of this keyword is to generate immutable data structures. Immutable data structures by definition cannot be ch...
Select all 'tr' except the first one
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By adding a class to either the first tr or the subsequent trs. There is no crossbrowser way of selecting the rows you want with CSS alone.
However, if you don't care about Internet Explorer 6, 7 or 8:
tr:not(:first-child) ...
Jasmine.js comparing arrays
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this falls back on "==" in javascript by default. This is just not safe since not only the actual values are compared, but the whole object.
– Peter
Nov 12 '14 at 11:00
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What is a WeakHashMap and when to use it? [duplicate]
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Elements in a weak hashmap can be reclaimed by the garbage collector if there are no other strong references to the key object, this makes them useful for caches/lookup storage.
Weak reference are not restricted to these hash tables, you can use WeakReference for sing...
Explode PHP string by new line
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this php function explode string by newline
Attention : new line in Windows is \r\n and in Linux and Unix is \n
this function change all new lines to linux mode then split it.pay attention that empty lines will be ignored
function splitNewLine($text) {
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Is JavaScript's “new” keyword considered harmful?
.... It can be a bit frustrating at times.
Use of the functionality provided by the new keyword has several advantages over building each object from scratch:
Prototype inheritance. While often looked at with a mix of suspicion and derision by those accustomed to class-based OO languages, JavaScript...
Rule-of-Three becomes Rule-of-Five with C++11?
...n, there is no overhead if the copy assignment operator takes its argument by value)
Destructor, copy constructor, copy assignment operator, move constructor,
move assignment operator
Note that move constructor and move assignment operator won't be generated for a class that explicitly decl...
How to clone a case class instance and change just one field in Scala?
...mmutable, and are held in immutable collections, to be eventually modified by an Akka actor.
5 Answers
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Git : List all unmerged changes in git
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If it's giving u error, try to replace master by origin as upstream.
– CodeFarmer
Dec 21 '17 at 2:08
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What is difference between instantiating an object using new vs. without
...ope, generally on the stack, which will be destroyed when its scope ends.
By contrast:
Time* t = new Time(12, 0, 0);
... allocates a block of memory by calling either ::operator new() or Time::operator new(), and subsequently calls Time::Time() with this set to an address within that memory bloc...