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ES6 next big thing polyfilled before it gets real

Ensure directories exist before writing to them.

Check if gulplog is available before attempting to use it

Check Travis CI environment before publishing

Is this a bluebird promise I see before me?

Calculates and/or checks data coming through a stream and emits the digest before stream end.

A Minipass stream that calls a flush function before emitting 'end'

A Webpack plugin that allows to transform \ modify assets just before Webpack emits them.

PostCSS plugin to add single-colon CSS 2.1 syntax pseudo selectors (i.e. :before)

A little utility for escaping globs before passing them to zeptomatch.

A replacement for process.exit that ensures stdio are fully drained before exiting.

A replacement for process.exit that ensures stdio are fully drained before exiting.

The lodash method `_.before` exported as a module.

Remove Flow type annotations before bundling.

A write stream constructor that supports a flush function that is called before finish is emitted

Execute a function right before the process, or the browser's tab, is about to exit.

Basic write stream that ensures destination exists before opening for writing.

asynchronous before/error/after hooks for internal functionality

Starts a server before your Jest tests and tears it down after.

Yet another precommit module that will run tasks defined in a config file or in a `package.json` file, stashing anything that is not supposed to be commited before run the scripts to avoid false positives when running validation like tasks

Ember CLI addon for detecting missing npm and bower dependencies before executing ember commands

<!-- TODO: update version number before releasing, here and in the script tag --> [](https://www.npmjs.com/package/indefinite-observable/v/2.0.1) [![Test status](https://img.shie

Better setup for tests

Clean your package before publish

The 2020 Most Modern Testing Framework For Node.JS With Test Contexts (Reusable BeforeEach / AfterEach Via Separate Files); Masks (Inputs/Outputs In Non-Js Files) And Fork Testing; Interactive Snapshots.

Transform stream that lets you peek the first line before deciding how to parse it

Transforms Async functions to generator functions before bundling.

Execute a function before a function.

Build a buffer without knowing its size beforehand

Adds a done-friendly beforeAll setup to jasmine