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Description

Functional tools for JavaScript inspired by Ramda and Ramda Adjunct.

Installation

Add this, Ramda, and Ramda Adjunct as dependencies to your project using npm with

$ npm install ramda ramda-adjunct @meltwater/phi

or using Yarn with

$ yarn add ramda ramda-adjunct @meltwater/phi

Usage

See the complete API documentation and working examples.

import { isNonEmptyString } from '@meltwater/phi'

isNonEmptyString('phi') //=> true

Development Quickstart

$ git clone https://github.com/meltwater/phi.git
$ cd phi
$ nvm install
$ yarn

Run each command below in a separate terminal window:

$ yarn run watch
$ yarn run watch:test

Development and Testing

Source code

The phi source is hosted on GitHub. Clone the project with

$ git clone git@github.com:meltwater/phi.git

Requirements

You will need Node.js with npm, Yarn, and a Node.js debugging client.

Be sure that all commands run under the correct Node version, e.g., if using nvm, install the correct version with

$ nvm install

Set the active version for each shell session with

$ nvm use

Install the development dependencies with

$ yarn

CircleCI

CircleCI should already be configured: this section is for reference only.

The following environment variables must be set on CircleCI:

  • NPM_TOKEN: npm token for installing and publishing packages.
  • NPM_TEAM: npm team to grant read-only package access (format org:team, optional).
  • CODECOV_TOKEN: Codecov token for uploading coverage reports (optional).

These may be set manually or by running the script ./circleci/envvars.sh.

Documentation

For documentation publishing, CircleCI must have an SSH key for github.com added as a deploy key with write access on the GitHub repository.

Development tasks

Primary development tasks are defined under scripts in package.json and available via yarn run. View them with

$ yarn run

Production build

Lint, test, and transpile the production build to dist with

$ yarn run dist
Publishing a new release

Update the CHANGELOG before each new release.

Release a new version using npm version. This will run all tests, update the version number, create and push a tagged commit, and trigger CircleCI to publish the new version to npm.

Examples

See the full documentation on using examples.

View all examples with

$ yarn run example

Linting

Linting against the JavaScript Standard Style and JSON Lint is handled by gulp.

View available commands with

$ yarn run gulp -- --tasks

In a separate window, use gulp to watch for changes and lint JavaScript and JSON files with

$ yarn run watch

Automatically fix most JavaScript formatting errors with

$ yarn run format

Tests

Unit and integration testing is handled by AVA and coverage is reported by Istanbul and uploaded to Codecov.

  • Test files end in .spec.js.
  • Unit tests are placed under lib alongside the tested module.
  • Integration tests are placed in test.
  • Static files used in tests are placed in fixtures.

Watch and run tests on changes with

$ yarn run watch:test

Generate a coverage report with

$ yarn run report

An HTML version will be saved in coverage.

Debugging tests

Create a breakpoint by adding the statement debugger to the test and start a debug session with, e.g.,

$ yarn run ava:inspect lib/true.spec.js

Watch and restart the debugging session on changes with

$ yarn run ava:inspect:watch lib/true.spec.js

Contributing

The author and active contributors may be found in package.json,

$ jq .author < package.json
$ jq .contributors < package.json

To submit a patch:

  1. Request repository access by submitting a new issue.
  2. Create your feature branch (git checkout -b my-new-feature).
  3. Make changes and write tests.
  4. Commit your changes (git commit -am 'Add some feature').
  5. Push to the branch (git push origin my-new-feature).
  6. Create a new Pull Request.

License

This npm package is Copyright (c) 2016-2017 Meltwater Group.

Warranty

This software is provided by the copyright holders and contributors "as is" and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the copyright holder or contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage.