is-generator-function 1.0.10

The "is-generator-function" is a JavaScript package that helps you determine if a function is a native generator function in JavaScript. This utility is particularly beneficial when dealing with asynchronous operations, as generator functions allow the flow of execution to be paused and resumed, which can be handy for handling promises or other asynchronous tasks.

To use the "is-generator-function" package, you first need to install it into your project by running npm install is-generator-function on your command line. Once installed, you can require the package in your JavaScript file and use it to check if a function is a generator function. Here's a small usage example:

// First, require the package
var isGeneratorFunction = require('is-generator-function');

// Then, use it to check if a function is a generator function
console.log(isGeneratorFunction(function () {})); // logs: false
console.log(isGeneratorFunction(null)); // logs: false
console.log(isGeneratorFunction(function* () { yield 42; return Infinity; })); // logs: true

In this code, we're first requiring the "is-generator-function" package. Then, we're using it to check whether certain objects are generator functions. In the example, both a normal function and the value null are not generator functions, while a function declared with an asterisk * (this syntax denotes a generator function in JavaScript) is correctly identified as a generator function.

The official documentation for the "is-generator-function" package can be found on its npm page at https://npmjs.org/package/is-generator-function. The README file provided there contains information about the purpose of the package, its usage, including example code, and testing procedures. For more deep-dives or discussions related to package usage, you can check the GitHub repository at git://github.com/inspect-js/is-generator-function.git, where the package's codebase is open for scrutiny and contributions.