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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]
React DOM – Fix passive effects (useEffect) not being fired in a multi-root app. React Is – Fix lazy and memo types considered elements instead of components 16.13.0 26 February 2020 Features added in React Concurrent mode. Fix regressions in React core library and React Dom. 16.14.0 14 October 2020 Add support for the new JSX transform. 17.0.0
This example is in Smalltalk, of a typical accessor method to return the value of a variable using lazy initialization. height ^ height ifNil: [ height := 2.0 ] . The 'non-lazy' alternative is to use an initialization method that is run when the object is created and then use a simpler accessor method to fetch the value.
Over the past couple months the term “lazy girl jobs” has gone viral. Like so many new catchphrases this day and age, it began on TikTok as a hashtag, coined by Gabrielle Judge, a 26-year-old ...
In computer operating systems, demand paging (as opposed to anticipatory paging) is a method of virtual memory management. In a system that uses demand paging, the operating system copies a disk page into physical memory only when an attempt is made to access it and that page is not already in memory (i.e., if a page fault occurs).
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.
In 2015, designer Frances Berriman and Google Chrome engineer Alex Russell coined the term "progressive web apps" [14] to describe apps taking advantage of new features supported by modern browsers, including service workers and web app manifests, that let users upgrade web apps to progressive web applications in their native operating system (OS).