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What is the difference between an abstract function and a virtual function?
What is the difference between an abstract function and a virtual function? In which cases is it recommended to use virtual or abstract? Which one is the best approach?
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How to handle change of checkbox using jQuery?
...ou can use Id of the field as well
$('#checkbox1').change(function() {
if($(this).is(":checked")) {
//'checked' event code
return;
}
//'unchecked' event code
});
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How can I move a single directory from a git repository to a new repository whilst maintaining the h
...ll this whilst maintaining the revision history of the individual projects if possible.
3 Answers
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What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?
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Koenig Lookup, or Argument Dependent Lookup, describes how unqualified names are looked up by the compiler in C++.
The C++11 standard § 3.4.2/1 states:
When the postfix-expression in a function call (5.2.2) is an unqualified-id, other namespaces not considered during the usual unqual...
How do I check what version of Python is running my script?
...as you like. Note however, that it is almost always better to "duck" check if a certain feature is there, and if not, workaround (or bail out). Sometimes features go away in newer releases, being replaced by others.
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How to save username and password with Mercurial?
...me = foo
bb.password = foo_passwd
The ‘bb’ part is an arbitrary identifier and is used to match prefix with username and password - handy for managing different username/password combos with different sites (prefix)
You can also only specify the user name, then you will just have to type your...
How to set a timer in android
...tended for cases where you want to have your application code run at a specific time, even if your application is not currently running. For normal timing operations (ticks, timeouts, etc) it is easier and much more efficient to use Handler."
– Christopher Perry
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How to create a database from shell command?
...se. Or...
echo "create database `database-name`" | mysql -u username -p
If you really only want to create a database.
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How to delete/unset the properties of a javascript object? [duplicate]
...to remove/unset the properties of a JS object so they'll no longer come up if I loop through the object doing for (var i in myObject) . How can this be done?
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Is there a “standard” format for command line/shell help text?
If not, is there a de facto standard? Basically I'm writing a command line help text like so:
8 Answers
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