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@fapapa/lotide

v1.0.1

Published

Like lodash, only worse

Downloads

4

Readme

Lotide

A mini clone of the Lodash library.

Purpose

BEWARE: This library was published for learning purposes. It is not intended for use in production-grade software.

This project was created and published by me as part of my learnings at Lighthouse Labs.

Usage

Install it:

npm install @fapapa/lotide

Require it:

const _ = require('@fapapa/lotide');

Call it:

const results = _.tail([1, 2, 3]) // => [2, 3]

Documentation

The following functions are currently implemented:

  • assertArraysEqual(actualArr, expectedArr): Deeply checks the equality of the two passed-in arrays and logs to the console either a passed or failed message
  • assertEqual(actual, expected): For primitive values; Checks for strict equality between the two passed-in values.
  • assertObjectsEqual(actualObj, expectedObj): Deeply checks the equality the two passed-in objects
  • countLetters(string): Given string returns an object with each unique letter in string as a property, with the number of times that letter appears in the string as a value
  • countOnly(allItems, itemsToCount): Returns an object with counts for all the items in array allItems, where itemsToCount[*allItems[i]*] returns true
  • eqArrays(actual, expected): Deeply checks the equality of the two passed in arrays and returns true or false
  • eqObjects(actual, expected): Deeply checks the equality of the two passed in objects and returns true or false
  • findKey(obj, callback): Returns the first property for obj where the callback returns true
  • findKeyByValue(obj, val): Returns the first property in obj where its value is equal to val
  • flatten(array): Flattens multi-dimensional array
  • head(array): Returns the value at index 0 of array
  • letterPositions(string): Returns an object corresponding to string where each property is a unique letter of string, with the number of times it appears in string
  • map(array, callback): Passes in each element of array to callback and puts the return value of callback into a new array, and returns it
  • middle(arr): Returns the middle one (for odd-length arrays) or two (for even-length arrays) elements of array
  • tail(arr): Returns everything but the first element of arr
  • takeUntil(array, callback): Returns all the items of array in a new array until callback returns a falsey value
  • without(array, itemsToRemove): Returns an array with all items in array except those that are also in itemsToremove