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Test for existence of nested JavaScript object key
...bj /*, level1, level2, ... levelN*/) {
var args = Array.prototype.slice.call(arguments, 1);
for (var i = 0; i < args.length; i++) {
if (!obj || !obj.hasOwnProperty(args[i])) {
return false;
}
obj = obj[args[i]];
}
return true;
}
var test = {level1:{level2:{level3:'leve...
Objective-C categories in static library
...roject as direct dependency (target -> general -> direct dependencies) and all works OK, but categories. A category defined in static library is not working in app.
...
Difference between shared objects (.so), static libraries (.a), and DLL's (.so)?
... and shared objects are just different terms for the same thing - Windows calls them DLLs, while on UNIX systems they're shared objects, with the general term - dynamically linked library - covering both (even the function to open a .so on UNIX is called dlopen() after 'dynamic library').
They are ...
PHP - include a php file and also send query parameters
...luded PHP file which will then be interpreted. There is no scope change at all, so you can still access $someVar in the included file directly (even though you might consider a class based structure where you pass $someVar as a parameter or refer to a few global variables).
...
Why does Razor _layout.cshtml have a leading underscore in file name?
...ith the underscore. And the Web Pages framework has been configured not to allow files with leading underscores in their names from being requested directly. Other .cshtml files within Web Pages generally need to be browsable. They are the equivalent of .asp or .php files.
The ASP.NET team have sta...
SQL Server Index Naming Conventions [closed]
...ems that the primary key index is named PK_ and non-clustered indexes typically start with IX_. Are there any naming conventions beyond that for unique indexes?
...
What is the JSF resource library for and how should it be used?
...
Actually, all of those examples on the web wherein the common content/file type like "js", "css", "img", etc is been used as library name are misleading.
Real world examples
To start, let's look at how existing JSF implementati...
Why doesn't requests.get() return? What is the default timeout that requests.get() uses?
...
This seems really hard to find in the docs by googling or otherwise. Anyone know where this shows up in the docs?
– wordsforthewise
Oct 21 '17 at 22:31
...
Get file version in PowerShell
...
Since PowerShell can call .NET classes, you could do the following:
[System.Diagnostics.FileVersionInfo]::GetVersionInfo("somefilepath").FileVersion
Or as noted here on a list of files:
get-childitem * -include *.dll,*.exe | foreach-object { "...
How do I implement __getattribute__ without an infinite recursion error?
I want to override access to one variable in a class, but return all others normally. How do I accomplish this with __getattribute__ ?
...