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  • License MIT

Utilities for Ramda.

Package Exports

  • ramdasauce

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (ramdasauce) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Ramdasauce

Adds a few utilities based on the delicious Ramda library.

npm module

Installing

npm i ramdasauce --save

  • Depends on ramda 0.20.1+.
  • Targets ES5.
  • Built with ES6.

Usage

Here's the quick list of functions and a simple example.

import RS from 'ramdasauce'

// --- Conversions ---
RS.toDate(1e12)             // a Number to a date Object
RS.toNumber('5')            // a String to a Number

// --- Object Shenanigans ---
const x = {a: 1, b: 2, c: {x: [5, 6]}}
RS.mapKeys(R.toUpper, x)    // transforms the keys of an object by the function
RS.dotPath('c.x.0')         // fetches a value from a nested object by a string path

// --- Generating Things ---
RS.rangeStep(2, 2, 10)      // generates a range of numbers with a step

// --- Predicates ---
RS.isUndefined(qwerty)      // check if something is undefined
RS.isNotNil(null)           // check if something is not null or undefined
RS.isNilOrEmpty(null)       // checks if something is null, undefined or R.isEmpty
RS.isWithin(1, 2, 2)        // is the 3rd parameter within the range of 1st through 2nd?
RS.isNotWithin(1, 2, 100)   // is the 3rd parameter not within the range of 1st through 2nd?
RS.eqLength([1,2,3], 'abc') // tests 2 things to see if their length properties are the same
RS.startsWith('h', 'hi')    // does a string start with another string?
RS.endsWith('i', 'hi')      // does a string end with another string?

// --- Impure Randomness ---
RS.random(68, 70)           // a random number from the min to the max included
RS.sample(['red', 'blue'])  // picks a random item from a list

// --- Impure Debugging Tools ---
RS.log('x')                 // logs and returns the parameter
RS.trace('x', 1)            // logs the 1st param and returns the 2nd

Tips For Debugging

import R from 'ramda'
import RS from 'ramdasauce'

// NOTE: impure because they write to the console... but
// check this out:
R.pipe(
  R.concat('!!')
  RS.log,  // <-- prints 'HI!!' to your console
  R.toLower
)('HI') //=> 'hi!!'

R.pipe(
  RS.trace('here'),  // <-- print 'here' to the console
  R.toLower
)('HI') //=> 'hi'

Prior Art

Most of these functions were lifted from stuff I wrote in real projects.

(leans in and whispers)

I did look at these tho:

Philosophy

These helper functions target that sweet spot between:

Not right for ramda core.

and

Would never be used outside your app.

Functions being added here must be used in an app. Preferable more than once.

I hope this library won't turn into something like this:

RS.portmanteau('functor', 'wrecked')
RS.yearsForAnimalInAsianCalendars('monkey')

Feedback

Do you have any common ramda patterns you use frequently? Drop some issues or PRs in!

Release Notes

1.0.0 - April 3rd, 2016

  • Initial Release