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What does $$ mean in the shell?
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In Bash $$ is the process ID, as noted in the comments it is not safe to use as a temp filename for a variety of reasons.
For temporary file names, use the mktemp command.
sh...
What happens to a detached thread when main() exits?
...Unless you've unwound your stack at this point, it's hard to see how to avoid undefined behaviour.
The answer to the second question "can detached threads ever be joined again" is:
Yes, with the *_at_thread_exit family of functions (notify_all_at_thread_exit(), std::promise::set_value_at_thread_ex...
ASP.NET MVC partial views: input name prefixes
...lper, of type HtmlHelper<TModel> had a new property ViewData, which hid the base model's. With that, I replaced new ViewDataDictionary(helper.ViewData) with new ViewDataDictionary(((HtmlHelper)helper).ViewData). Do you see any problem with that?
– Pat Newell
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Each for object? [duplicate]
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A javascript Object does not have a standard .each function. jQuery provides a function. See http://api.jquery.com/jQuery.each/ The below should work
$.each(object, function(index, value) {
console.log(value);
});
Another option would be to use vanilla Javascript using the Object.keys() a...
Find out what process registered a global hotkey? (Windows API)
...llAPI, ActiveX, CommCtrl;
procedure GetShellLinkHotKey;
var
LinkFile : WideString;
SL: IShellLink;
PF: IPersistFile;
HotKey : Word;
HotKeyMod: Byte;
HotKeyText : string;
begin
LinkFile := 'C:\Temp\Temp.lnk';
OleCheck(CoCreateInstance(CLSID_ShellLink, nil, CLSCTX_INPROC_SERVER, ISh...
What's the difference between TRUNCATE and DELETE in SQL
...to be faster than a DELETE.
Various system-specific issues have to be considered, as detailed below.
Statement type
Delete is DML, Truncate is DDL (What is DDL and DML?)
Commit and Rollback
Variable by vendor
SQL*Server
Truncate can be rolled back.
PostgreSQL
Truncate can be rolled back...
Getting Checkbox Value in ASP.NET MVC 4
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@Html.EditorFor(x => x.Remember)
Will generate:
<input id="Remember" type="checkbox" value="true" name="Remember" />
<input type="hidden" value="false" name="Remember" />
How does it work:
If checkbox remains unchecked, the form submits only the hidden value (false)
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How to vertically align a html radio button to it's label?
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Try this:
input[type="radio"] {
margin-top: -1px;
vertical-align: middle;
}
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How to Set a Custom Font in the ActionBar Title?
...he tab text) with a font in my assets folder? I don't want to use the android:logo option.
17 Answers
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Override setter with arc
Did I correctly override the setter when ARC is enabled?
3 Answers
3
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