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What is the difference between -viewWillAppear: and -viewDidAppear:?
What is the difference between -[UIViewController viewWillAppear:] and -[UIViewController viewDidAppear:] ?
12 Answers
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Linux command to list all available commands and aliases
...it can be more efficient to pass the string as argument to compgen itself (if it's known to be a prefix, as implied in the question). In this case, that would be compgen -ac searchstr.
– Toby Speight
Jul 20 '17 at 9:01
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How to get browser width using JavaScript code?
...it still works, I'd like to update it for 2017. Browsers can still behave differently. I trust the jQuery team to do a great job at maintaining cross-browser consistency. However, it's not necessary to include the entire library. In the jQuery source, the relevant portion is found on line 37 of dime...
How can I know if a process is running?
When I get a reference to a System.Diagnostics.Process , how can I know if a process is currently running?
13 Answers
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Passing properties by reference in C#
...ion.
1. Return Value
string GetString(string input, string output)
{
if (!string.IsNullOrEmpty(input))
{
return input;
}
return output;
}
void Main()
{
var person = new Person();
person.Name = GetString("test", person.Name);
Debug.Assert(person.Name == "test");...
What is the C# equivalent of NaN or IsNumeric?
... guess I can use Double.Parse or a regex (see below) but I was wondering if there is some built in way to do this, such as javascript's NaN() or IsNumeric() (was that VB, I can't remember?).
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Check if a string is html or not
I have a certain string for which I want to check if it is a html or not. I am using regex for the same but not getting the proper result.
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How do I get the path of a process in Unix / Linux
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sudo if output is empty, some processes are created by other system users.
– Lun4i
Sep 2 '17 at 5:21
add ...
Access Enum value using EL with JSTL
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For those requiring a source: This is specified (for instance) in section 1.17 of the "Expression Language Specification, version 2.2", which is part of JSR-245.
– meriton
Aug 6 '10 at 16:57
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Accessing JPEG EXIF rotation data in JavaScript on the client side
...te photos based on their original rotation, as set by the camera in JPEG EXIF image data. The trick is that all this should happen in the browser, using JavaScript and <canvas> .
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