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Lazy loading (also known as asynchronous loading) is a technique used in computer programming, especially web design and web development, to defer initialization of an object until it is needed. It can contribute to efficiency in the program's operation if properly and appropriately used.
In software engineering, the initialization-on-demand holder (design pattern) idiom is a lazy-loaded singleton. In all versions of Java, the idiom enables a safe, highly concurrent lazy initialization of static fields with good performance. [1] [2]
The lazy initialization technique allows us to do this in just O(m) operations, rather than spending O(m+n) operations to first initialize all array cells. The technique is simply to allocate a table V storing the pairs ( k i , v i ) in some arbitrary order, and to write for each i in the cell T [ k i ] the position in V where key k i is stored ...
Spring 5 is announced to be built upon Reactive Streams compatible Reactor Core. [17] [obsolete source] Spring Framework 6.0 has been released on 16 November 2022 and came with a Java 17+ baseline and a move to Jakarta EE 9+ (in the jakarta namespace), with a focus on the recently released Jakarta EE 10 APIs such as Servlet 6.0 and JPA 3.1. [18]
Lazy evaluation can also lead to reduction in memory footprint, since values are created when needed. [19] In practice, lazy evaluation may cause significant performance issues compared to eager evaluation. For example, on modern computer architectures, delaying a computation and performing it later is slower than performing it immediately.
Templates are a very useful tool here on Wikipedia. They allow us to take something that needs to appear on several pages, either in a static way (meaning it stays the same all the time) or a dynamic way (meaning it changes sometimes, or even frequently).
A bug was discovered in May 2015 where users pasted a certain set of characters and Unicode in a set order, causing the SpringBoard to crash and relaunch, which displays a black or white screen and white or black Apple logo (depending on the user's device) that looks identical to the boot screen.