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All npm packages are JavaScript libraries, but not all libraries are packages. Npm serves as a package manager for packages used in Node.js runtimes. [12] [13] However, some npm packages offer CDN support for use of the library in both Node.js runtimes as well as the browser. [14]
Yarn can install packages from local cache. [8] Yarn binds versions of the package strongly. Yarn uses checksum for ensuring data integrity, while npm uses SHA-512 to check data integrity of the packages downloaded. [9] Yarn installs packages in parallel, while npm installs one package at a time.
Synaptic, an example of a package manager. A package manager or package-management system is a collection of software tools that automates the process of installing, upgrading, configuring, and removing computer programs for a computer in a consistent manner.
For example, in GoboLinux a recipe file contains information on how to download, unpack, compile and install a package using its Compile tool. In both cases, the user must provide the computing power and time needed to compile the app, and is legally responsible for the consequences of compiling the package.
Dependencies between files, as declared in the Nix language, are automatically tracked and persisted in the "Nix store". [9] New files in the Nix store are created through "derivations". A derivation is a persistent data structure that specifies an executable, arguments and environment variables for its invocation (see execve ), and other files ...
The ability to run JavaScript code on the server is often used to generate dynamic web page content before the page is sent to the user's web browser. Consequently, Node.js represents a "JavaScript everywhere" paradigm , [ 6 ] unifying web-application development around a single programming language , as opposed to using different languages for ...
Chrome Web Store was publicly unveiled in December 2010, [2] and was opened on February 11, 2011, with the release of Google Chrome 9.0. [3] A year later it was redesigned to "catalyze a big increase in traffic, across downloads, users, and total number of apps". [4]
V8 is a JavaScript and WebAssembly engine developed by Google for its Chrome browser. [ 1 ] [ 4 ] V8 is free and open-source software that is part of the Chromium project and also used separately in non-browser contexts, notably the Node.js runtime system .