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JavaScript checking for null vs. undefined and difference between == and ===
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How do I check a variable if it's null or undefined...
Is the variable null:
if (a === null)
// or
if (a == null) // but see note below
...but note the latter will also be true if a is undefined.
Is it undefined:
if (typeof a === "undefined")
// or
if (a === undefi...
How do I install cygwin components from the command line?
Is there a tool in the Cygwin package similar to apt-get on Debian or yum on redhat that allows me to install components from the command line?
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Read/Write 'Extended' file properties (C#)
I'm trying to find out how to read/write to the extended file properties in C#
e.g. Comment, Bit Rate, Date Accessed, Category etc that you can see in Windows explorer.
Any ideas how to do this?
EDIT: I'll mainly be reading/writing to video files (AVI/DIVX/...)
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What exactly does an #if 0 … #endif block do?
In C /C++
9 Answers
9
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Can you use CSS to mirror/flip text?
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You can use CSS transformations to achieve this. A horizontal flip would involve scaling the div like this:
-moz-transform: scale(-1, 1);
-webkit-transform: scale(-1, 1);
-o-transform: scale(-1, 1);
-ms-transform: scale(-1, 1);
transform: scale(-1, 1);
And a vertical flip would involve scaling ...
Is there a faster/shorter way to initialize variables in a Rust struct?
In the following example, I would much prefer to assign a value to each field in the struct in the declaration of the fields. Alternatively, it effectively takes one additional statement for each field to assign a value to the fields. All I want to be able to do is to assign default values when the ...
Find out who is locking a file on a network share
I want to known who is locking a file on a network share.
8 Answers
8
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How to get the process ID to kill a nohup process?
I'm running a nohup process on the server. When I try to kill it my putty console closes instead.
13 Answers
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C# Lambda expressions: Why should I use them?
...be converted to expression trees which allows for a lot of the magic like LINQ to SQL.
The following is an example of a LINQ to Objects expression using anonymous delegates then lambda expressions to show how much easier on the eye they are:
// anonymous delegate
var evens = Enumerable
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Can't connect to MySQL server error 111 [closed]
I installed mysql server on linux box IP = 192.168.1.100 but when i try to connect to this IP it alway error(111). but use localhost and 127.0.0.1 is OK.
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