JavaScript

JavaScript

A high-level, interpreted programming language that enables interactive web pages.

JavaScript is a high-level, interpreted programming language that conforms to the ECMAScript specification.

JavaScript has curly-bracket syntax, dynamic typing, prototype-based object-orientation, and first-class functions.

Alongside HTML and CSS, JavaScript is one of the core technologies of the World Wide Web. JavaScript enables interactive web pages and is an essential part of web applications. The vast majority of websites use it, and major web browsers have a dedicated JavaScript engine to execute it.

As a multi-paradigm language, JavaScript supports event-driven, functional, and imperative (including object-oriented and prototype-based) programming styles. It has APIs for working with text, arrays, dates, regular expressions, and the DOM, but the language itself does not include any I/O, such as networking, storage, or graphics facilities. It relies upon the host environment in which it is embedded to provide these features.

Initially only implemented client-side in web browsers, JavaScript engines are now embedded in many other types of host software, including server-side in web servers and databases, and in non-web programs such as word processors and PDF software, and in runtime environments that make JavaScript available for writing mobile and desktop applications, including desktop widgets.

The terms Vanilla JavaScript and Vanilla JS refer to JavaScript not extended by any frameworks or additional libraries. Scripts written in Vanilla JS are plain JavaScript code.

Although there are similarities between JavaScript and Java, including language name, syntax, and respective standard libraries, the two languages are distinct and differ greatly in design.

Timeline

December 4, 1995
First appeared

First released in Netscape Navigator 2.0 beta 3

People

Name
Role
LinkedIn

Brendan Eich

Designer

Further reading

Title
Author
Link
Type
Date

How does Javascript affect SEO?

ButterCMS

Web

Sept 09, 2019

Documentaries, videos and podcasts

Title
Date
Link

Companies

Company
CEO
Location
Products/Services

News

Title
Author
Date
Publisher
Description
Dave Johnson
February 23, 2021
Business Insider
You can enable JavaScript in your iPhone's Settings app to improve website appearance in your Safari browser.
Mara Leighton
February 18, 2021
Business Insider
Harvard's CS50 introduction to computer science course boasts some of the highest enrollments on edX and at Harvard University.
Mara Leighton
January 25, 2021
Business Insider
Udemy has everything from programming and data science courses to marketing, photography and MBA offerings (all frequently discounted).
Kylie Robison
January 22, 2021
Business Insider
According to GitHub's annual State of the Octoverse report, JavaScript remains the world's most popular programming language.
Oracle
January 13, 2021
www.prnewswire.com:443
/PRNewswire/ -- Oracle today announced that Oracle Database 21c, the latest version of the world's leading converged database, is available on Oracle Cloud,...
Rosalie Chan
November 21, 2020
Business Insider
Air Force veteran Jerome Hardaway couldn't find a job when he left the military until he learned coding. Now, he's helping other veterans do the same.
Joao-Pierre S. Ruth Senior Writer
November 12, 2020
InformationWeek
Engineers and developers need to break out of their specialized zones and learn more tricks to meet hiring demands, say stakeholders.
Mara Leighton
November 9, 2020
Business Insider
Whether you're learning Python or Java, there are many affordable online coding and computer science courses, and some offer certificates or degrees.
Bram Berkowitz
August 4, 2020
AmericanInno
We at Rhode Island Inno have established a curated calendar of statewide goings-on we think readers will enjoy -- alllll in one spot.
Catherine Shu
July 14, 2020
TechCrunch
Sentry, the Accel-backed company that creates bug-monitoring software for app developers, announced its latest product today. Called Performance Monitoring, it is frontend performance monitoring software for Python and Javascript. The company, whose investors also include New Enterprise Associates, said the feature can reduce the amount of time spent fixing errors to a few minutes by [...]
Bram Berkowitz
July 1, 2020
AmericanInno
We at Rhode Island Inno have established a curated calendar of statewide goings-on we think readers will enjoy -- alllll in one spot.
Bram Berkowitz
June 1, 2020
AmericanInno
We at Rhode Island Inno have established a curated calendar of statewide goings-on we think readers will enjoy -- alllll in one spot.
Ingrid Lunden
April 27, 2020
TechCrunch
Thanks to smartphones and their downsized keyboards, autocomplete has become a nearly ubiquitous feature of how we write these days. To save us precious seconds composing and (at least in my fat-thumbed case) correcting words, our keyboards now prompt us with suggestions of what we're trying to write to get the job done a little [...]
Ron Miller
March 16, 2020
TechCrunch
GitHub, the developer repository owned by Microsoft, made a little deal of its own this morning when it bought JavaScript packaging vendor npm for an undisclosed amount. As GitHub CEO Nate Friedman wrote in a blog post announcing the deal, npm is a big deal in the JavaScript community. The company is the commercial entity [...]
March 11, 2020
Nature
Skeletal inclusions in approximately 99-million-year-old amber from northern Myanmar provide unprecedented insights into the soft tissue and skeletal anatomy of minute fauna, which are not typically preserved in other depositional environments1-3. Among a diversity of vertebrates, seven specimens that preserve the skeletal remains of enantiornithine birds have previously been described1,4-8, all of which (including at least one seemingly mature specimen) are smaller than specimens recovered from lithic materials. Here we describe an exceptionally well-preserved and diminutive bird-like skull that documents a new species, which we name Oculudentavis khaungraae gen. et sp. nov. The find appears to represent the smallest known dinosaur of the Mesozoic era, rivalling the bee hummingbird (Mellisuga helenae)--the smallest living bird--in size. The O. khaungraae specimen preserves features that hint at miniaturization constraints, including a unique pattern of cranial fusion and an autapomorphic ocular morphology9 that resembles the eyes of lizards. The conically arranged scleral ossicles define a small pupil, indicative of diurnal activity. Miniaturization most commonly arises in isolated environments, and the diminutive size of Oculudentavis is therefore consistent with previous suggestions that this amber formed on an island within the Trans-Tethyan arc10. The size and morphology of this species suggest a previously unknown bauplan, and a previously undetected ecology. This discovery highlights the potential of amber deposits to reveal the lowest limits of vertebrate body size. Oculudentavis khaungraae--a newly discovered theropod from the Cretaceous period of Myanmar--reveals a previously unknown bauplan and ecology associated with miniaturization, highlighting the potential for recovering small-bodied vertebrates from amber deposits.
Dan Goodin
January 13, 2020
Ars Technica
Cable Haunt lets attackers take complete control when targets visit booby-trapped sites.
IANS
December 10, 2019
@bsindia
Read more about Blockchain, AI, JavaScript professionals most in demand for jobs: LinkedIn on Business Standard. LinkedIn has crunched data from billions of interactions of the platform's 62 million members in India to establish the fastest growing jobs in the Indian talent market.
Jim Salter
November 14, 2019
Ars Technica
The Bytecode Alliance aims to promote safe use--and reuse--of untrusted code at speed.
Ryan Ariano
November 4, 2019
Business Insider
You should enable JavaScript on an iPad so that websites you access function properly and so features like animations and videos work.
October 28, 2019
Nature
Anatomically modern humans originated in Africa around 200 thousand years ago (ka)1-4. Although some of the oldest skeletal remains suggest an eastern African origin2, southern Africa is home to contemporary populations that represent the earliest branch of human genetic phylogeny5,6. Here we generate, to our knowledge, the largest resource for the poorly represented and deepest-rooting maternal L0 mitochondrial DNA branch (198 new mitogenomes for a total of 1,217 mitogenomes) from contemporary southern Africans and show the geographical isolation of L0d1'2, L0k and L0g KhoeSan descendants south of the Zambezi river in Africa. By establishing mitogenomic timelines, frequencies and dispersals, we show that the L0 lineage emerged within the residual Makgadikgadi-Okavango palaeo-wetland of southern Africa7, approximately 200 ka (95% confidence interval, 240-165 ka). Genetic divergence points to a sustained 70,000-year-long existence of the L0 lineage before an out-of-homeland northeast-southwest dispersal between 130 and 110 ka. Palaeo-climate proxy and model data suggest that increased humidity opened green corridors, first to the northeast then to the southwest. Subsequent drying of the homeland corresponds to a sustained effective population size (L0k), whereas wet-dry cycles and probable adaptation to marine foraging allowed the southwestern migrants to achieve population growth (L0d1'2), as supported by extensive south-coastal archaeological evidence8-10. Taken together, we propose a southern African origin of anatomically modern humans with sustained homeland occupation before the first migrations of people that appear to have been driven by regional climate changes. Analyses of mitochondrial genomes from populations in southern Africa provide evidence of a southern African origin of anatomically modern humans and a sustained occupation of the homeland before the first migrations of people appear to be driven by regional climate shifts.
SHOW MORE
Golden logo
Text is available under the Creative Commons Attribution-ShareAlike 4.0; additional terms apply. By using this site, you agree to our Terms & Conditions.