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Difference between $(document.body) and $('body')
... edge case.
The difference is that $('body') actually selects the element by the tag name, whereas document.body references the direct object on the document.
That means if you (or a rogue script) overwrites the document.body element (shame!) $('body') will still work, but $(document.body) will no...
Correct use of flush() in JPA/Hibernate
...e query against the same session (EM state must be flushed to be reachable by the SQL query), inserting entities using native generated id (generated by the database, so the insert statement must be triggered thus the EM is able to retrieve the generated id and properly manage relationships)
...
Is Integer Immutable
... them are*.
*It's possible to have immutable variables, these are denoted by the keyword final, which means that the reference may not change.
final Integer a = 3;
final Integer b = 3;
a += b; // compile error, the variable `a` is immutable, too.
...
MySQL: Insert record if not exists in table
...not actually suggesting that you do this, as the UNIQUE index as suggested by Piskvor and others is a far better way to do it, but you can actually do what you were attempting:
CREATE TABLE `table_listnames` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
`address` varch...
“cannot resolve symbol R” in Android Studio
...
Yet another amazing feat by Android studio developers. Reverting back to 3.2.1 was actually the only solution that has worked for me...
– Vucko
Feb 12 '19 at 13:32
...
How do I hide an element when printing a web page?
...en if you want to define screen-only styles but this is not the case here: By default all elements are displayed, and by defining a print-only styling which hides the element is perfectly sufficient to make it still appear on the screen.
– chiccodoro
Aug 30 '13...
MFC CListCtrl使用方法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...sual C++ NET (2002) supported both the managed code model that is provided by the .NET Framework and the unmanaged native Windows code model. The information in this article applies to unmanaged Visual C++ code only.
T>
SUMMARY
This article shows how to change the icon or bitmap of a CListCtrl ...
Overloading and overriding
...en you super class method get override accidentaly or if you mean to do it by using the new keyword in both cases, override or overwrite, the behaivor is diferent when you declare Parent p = new Child(); p.Method(); ... maybe I'm wrong and it is just another way to do almost the same thing. Can any...
When should I use Arrow functions in ECMAScript 6?
...entually be discouraged. The object constructor notation may still be used by some for simple anonymous object factories where objects are programmatically generated, but not for much else.
Where an object constructor is needed one should consider converting the function to a class as shown above. ...
Update or Insert (multiple rows and columns) from subquery in PostgreSQL
... imageUploader: {
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