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Why can't I inherit static classes?
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thanks for sharing that static classes get automatically compiled as sealed classes - I was wondering how/when that happened!
– Mark
Sep 21 '11 at 19:54
23
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Using semicolon (;) vs plus (+) with exec in find
...mmand line length. If the command exceeds this length, the command will be called multiple times.
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browser sessionStorage. share between tabs?
...ary over localStorage and sessionStorage to simplify this. So now you just call storageManager.saveSyncedSessionData('data', 'key'); or storageManager.savePermanentData('data', 'key');, etc based on what you need. The full code is here: ebenmonney.com/blog/…
– adentum
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Which is better, return value or out parameter?
...very rare exception to this rule.)
Aside from anything else, it stops the caller from having to declare the variable separately:
int foo;
GetValue(out foo);
vs
int foo = GetValue();
Out values also prevent method chaining like this:
Console.WriteLine(GetValue().ToString("g"));
(Indeed, tha...
How to bind Events on Ajax loaded Content?
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Use event delegation for dynamically created elements:
$(document).on("click", '.mylink', function(event) {
alert("new link clicked!");
});
This does actually work, here's an example where I appended an anchor with the class .mylink instead of data...
Expansion of variables inside single quotes in a command in Bash
...the command, and to supply the command together with variables so that the callee can receive them from the invocation arguments list.
For example, the following is very unsafe. DON'T DO THIS
script="echo \"Argument 1 is: $myvar\""
/bin/sh -c "$script"
If the contents of $myvar is untrusted, her...
Can modules have properties the same way that objects can?
...is? When I put this code in one file x.py and import it from another, then calling x.y results in AttributeError: 'NoneType' object has no attribute 'c', since _M somehow has value None...
– Stephan202
May 19 '09 at 1:35
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How to declare and add items to an array in Python?
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Arrays (called list in python) use the [] notation. {} is for dict (also called hash tables, associated arrays, etc in other languages) so you won't have 'append' for a dict.
If you actually want an array (list), use:
array = []
a...
Why does C++ require a user-provided default constructor to default-construct a const object?
...ucted base class of T is const-default-constructible.
If a program calls for the default-initialization of an object of a
const-qualified type T, T shall be a const-default-constructible class
type or array thereof.
This wording essentially means that the obvious code works. If you ini...
Running Command Line in Java [duplicate]
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To avoid the called process to be blocked if it outputs a lot of data on the standard output and/or error, you have to use the solution provided by Craigo. Note also that ProcessBuilder is better than Runtime.getRuntime().exec(). This is ...