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The examples below make use of the log function of the console object present in most browsers for ... Every function in JavaScript is an instance of the Function ...
The PhantomJS JavaScript API can be used to open web pages, take screenshots, execute user actions, and run injected JavaScript in the page context. For example, the following code will open Wikipedia and, upon loading, will save a screenshot to a file and exit.
LiveScript is a functional programming language that transpiles to JavaScript. It was created by Jeremy Ashkenas, the creator of CoffeeScript, along with Satoshi Muramaki, George Zahariev, and many others. [2] (The name may be an homage to the beta name of JavaScript; for a few months in 1995, it was called LiveScript before the official ...
Node.js programs are invoked by running the interpreter node interpreter with a given file, so the first two arguments will be node and the name of the JavaScript source file. It is often useful to extract the rest of the arguments by slicing a sub-array from process.argv .
PureScript supports incremental compilation, and the transpiler to JavaScript distribution includes support for building source code editor plugins for iterative development. [18] Editor plugins exist for many popular text editors, including Vim , Emacs , Sublime Text , Atom and Visual Studio Code .
XMLHttpRequest (XHR) is an API in the form of a JavaScript object whose methods transmit HTTP requests from a web browser to a web server. [1] The methods allow a browser-based application to send requests to the server after page loading is complete, and receive information back. [ 2 ]
In mathematics and in computer programming, a variadic function is a function of indefinite arity, i.e., one which accepts a variable number of arguments. Support for variadic functions differs widely among programming languages. The term variadic is a neologism, dating back to 1936/1937. [1] The term was not widely used until the 1970s.
Immediately invoked function expressions may be written in a number of different ways. [3] A common convention is to enclose the function expression – and optionally its invocation operator – with the grouping operator, [4] in parentheses, to tell the parser explicitly to expect an expression.