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What is the difference between a mutable and immutable string in C#?
....e once created its state cannot be altered.
So all the operations you perform on a string like Substring, Remove, Replace, concatenation using '+' operator etc will create a new string and return it.
See the following program for demonstration -
string str = "mystring";
string newString = str.Su...
jQuery Datepicker with text input that doesn't allow user input
...t; or <input readonly="readonly"> without true/false w3.org/TR/html5/forms.html#the-readonly-attribute
– Ankit Sharma
Sep 21 '16 at 14:13
5
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Function to clear the console in R and RStudio
... that key combination to the R.app? (I see that \014 is the ASCII code for Form Feed, so I guess it is not sending the key combination but just the Form Feed command, which makes it unlikely that a 'code' for Cmd+Alt+L would exist.)
– Johan
Sep 20 '13 at 10:19
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How to create an array containing 1…N
...n an N-element array of undefined elements. The difference is that in the former expression, each element is explicitly set to undefined, whereas in the latter, each element was never set. According to the documentation of .map():
callback is invoked only for indexes of the array which have as...
How to query SOLR for empty fields?
...aveat! If you want to compose this via OR or AND you cannot use it in this form:
-myfield:*
but you must use
(*:* NOT myfield:*)
This form is perfectly composable. Apparently SOLR will expand the first form to the second, but only when it is a top node. Hope this saves you some time!
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When is it acceptable to call GC.Collect?
... that now would be an appropriate time to collect in terms of the small performance hit.
A good example of this is if you've just closed a large form. You know that all the UI controls can now be garbage collected, and a very short pause as the form is closed probably won't be noticeable to the use...
MVC DateTime binding with incorrect date format
...r namely:
RouteData (not shown above)
URI query string
Request form
Only the last of these will be culture aware however. There is a very good reason for this, from a localization perspective. Imagine that I have written a web application showing airline flight information that I...
CSS selector for text input fields?
...
input[type=text]
or, to restrict to text inputs inside forms
form input[type=text]
or, to restrict further to a certain form, assuming it has id myForm
#myForm input[type=text]
Notice: This is not supported by IE6, so if you want to develop for IE6 either use IE7.js (as Yi ...
Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
...t - a suped-up text editor with additional support for developing (such as forms designers, resource editors, etc), compiling and debugging applications. e.g Eclipse, Visual Studio.
A Library is a chunk of code that you can call from your own code, to help you do things more quickly/easily. For exa...
Print Current Mercurial Revision Hash?
...the question, because afaik hg id -i prints only the short (12 characters) form of the global hash id and since hg identify lacks --template afaics there is no way to extract just the revision and nothing else since the man page says it prints a summary.
– Shelby Moore III
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