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React.js - input losing focus when rerendering
...t;EditorContainer key="editor1"/>
When a re-rendering occurs, if the same key is seen, this will tell React don't clobber and regenerate the view, instead reuse. Then the focused item should retain focus.
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How do I find the authoritative name-server for a domain name?
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You'll want the SOA (Start of Authority) record for a given domain name, and this is how you accomplish it using the universally available nslookup command line tool:
command line> nslookup
> set querytype=soa
> stackoverflow.com
Server: 217.30.180.230
Address: 217.30....
Maximum filename length in NTFS (Windows XP and Windows Vista)?
I'm designing a database table which will hold filenames of uploaded files. What is the maximum length of a filename in NTFS as used by Windows XP or Vista?
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.NET HashTable Vs Dictionary - Can the Dictionary be as fast?
... the order of items.
Leaving boxing/unboxing issues aside, most of the time, they should have very similar performance.
The primary structural difference between them is that Dictionary relies on chaining (maintaining a list of items for each hash table bucket) to resolve collisions whereas Hash...
How to read a text-file resource into Java unit test? [duplicate]
...ned, leaving resources open, potentially for the duration of the test run, means at best your tests run slower, and at worst fail in difficult-to-diagnose ways.
– dimo414
May 27 '14 at 7:24
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Storing integer values as constants in Enum manner in java [duplicate]
...l never return 1; it will return PAGE.SIGN_CREATE. That's the point of enumerated types.
However, if you're willing to add a few keystrokes, you can add fields to your enums, like this:
public enum PAGE{
SIGN_CREATE(0),
SIGN_CREATE_BONUS(1),
HOME_SCREEN(2),
RE...
How do I get the value of text input field using JavaScript?
I am working on a search with JavaScript. I would use a form, but it messes up something else on my page. I have this input text field:
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How to programmatically get iOS status bar height
I know that currently the status bar (with the time, battery, and network connection) at the top of the iPhone/iPad is 20 pixels for non-retina screens and 40 pixels for retina screens, but to future proof my app I would like to be able to determine this without hard coding values. Is it possible to...
What's the difference between an element and a node in XML?
...ng in Java with XML and I'm wondering; what's the difference between an element and a node?
13 Answers
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Update date + one year in mysql
When I want setting numerical value +1 in mysql table, I use e.g.:
3 Answers
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