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Why covariance and contravariance do not support value type
...il). Here is a collection of strings:
IEnumerable<string> strings = new[] { "A", "B", "C" };
You can think of the strings as having the following representation:
[0] : string reference -> "A"
[1] : string reference -> "B"
[2] : string reference -> "C"
It is a collection of thre...
Constructor function vs Factory functions
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The basic difference is that a constructor function is used with the new keyword (which causes JavaScript to automatically create a new object, set this within the function to that object, and return the object):
var objFromConstructor = new ConstructorFunction();
A factory function is call...
How to replace master branch in Git, entirely, from another branch? [duplicate]
... # create master-old on remote
git checkout -b master seotweaks # create a new local master on top of seotweaks
git push origin master # create master on remote
But again:
if other users try to pull while master is deleted on remote, their pulls will fail ("no such ref on remote")
when...
What is the purpose of Looper and how to use it?
I am new to Android. I want to know what the Looper class does and also how to use it. I have read the Android Looper class documentation but I am unable to completely understand it.
I have seen it in a lot of places but unable to understand its purpose. Can anyone help me by defining the purpos...
Ruby function to remove all white spaces?
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\s+ means 1 or more whitespace characters (space, newline, tab). The // surrounding show that it's a regular expression.
– dylanfm
Jul 27 '11 at 12:26
3
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Why does Java have transient fields?
...me = lName;
}
public String toString(){
StringBuffer sb = new StringBuffer(40);
sb.append("First Name : ");
sb.append(this.firstName);
sb.append("Middle Name : ");
sb.append(this.middleName);
sb.append("Last Name : ");
sb.append(this.l...
nginx: send all requests to a single html page
.../ {
rewrite (.*) base.html last;
}
Using last will make nginx find a new suitable location block according to the result of rewriting.
try_files is also a perfectly valid approach to this problem.
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Python: Tuples/dictionaries as keys, select, sort
...not adding a more key in the named tuple make things easier? I'd say add a new attribute count
– openrijal
Jan 30 '18 at 21:02
add a comment
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Why would a JavaScript variable start with a dollar sign? [duplicate]
... JS-Variables should use camelCase. email_fields -> emailField. Only valid use-case for _ is as a prefix for private/protected properties.
– cschuff
Sep 22 '14 at 12:18
11
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Should I use int or Int32
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@IllidanS4, with new compiler Roslyn - this was fixed, and both variant valid
– Grundy
Feb 23 '16 at 8:11
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