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Why is ArrayDeque better than LinkedList
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Linked structures are possibly the worst structure to iterate with a cache miss on each element. On top of it they consume way more memory.
If you need add/remove of the both ends, ArrayDeque is significantly better than a linked list. Random access each element is also O(1) fo...
How can I convert a string to boolean in JavaScript?
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Do:
var isTrueSet = (myValue == 'true');
You could make it stricter by using the identity operator (===), which doesn't make any implicit type conversions when the compared variables have different types, instead of the equality operator (==).
var isTrueSet = (myValue === 'true')...
How should you build your database from source control?
There has been some discussion on the SO community wiki about whether database objects should be version controlled. However, I haven't seen much discussion about the best-practices for creating a build-automation process for database objects.
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Is Task.Result the same as .GetAwaiter.GetResult()?
...sult will throw an AggregateException. However, what's the point of using either of those when it's async? The 100x better option is to use await.
Also, you're not meant to use GetResult(). It's meant to be for compiler use only, not for you. But if you don't want the annoying AggregateException, u...
Convert JSON String to Pretty Print JSON output using Jackson
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To indent any old JSON, just bind it as Object, like:
Object json = mapper.readValue(input, Object.class);
and then write it out with indentation:
String indented = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(json);
this avoids your havin...
How can I check if a value is a json object?
...type "object", if the string was JSON, so you only have to check the type with typeof
var response=jQuery.parseJSON('response from server');
if(typeof response =='object')
{
// It is JSON
}
else
{
if(response ===false)
{
// the response was a string "false", parseJSON will convert it to ...
iPad Safari scrolling causes HTML elements to disappear and reappear with a delay
...he browser to use hardware acceleration more effectively. You can do this with an empty 3d transform:
-webkit-transform: translate3d(0,0,0)
Particularly, you'll need this on child elements that have a position:relative; declaration (or, just go all out and do it to all child elements).
Not a gua...
How to do a logical OR operation in shell scripting
I am trying to do a simple condition check, but it doesn't seem to work.
8 Answers
8
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How to extract filename.tar.gz file
...SIX tar archive,
the archive is a tar, not a GZip archive.
Unpack a tar without the z, it is for gzipped (compressed), only:
mv filename.tar.gz filename.tar # optional
tar xvf filename.tar
Or try a generic Unpacker like unp (https://packages.qa.debian.org/u/unp.html), a script for unpacking a w...
simple explanation PHP OOP vs Procedural?
... a "simple explanation" which suggests:
You want a no-nonsense overview without jargon
You want something that will help you learn from the beginning
You have discovered that no two people ever answer the question the same way, and it's confusing. That's the reason you are here asking for a simple...