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 @v_lane/lotide
Require it:
const _ = require('@v_lane/lotide');
Call it:
const results = _.tail([1, 2, 3]) // => [2, 3]
Documentation
The following functions are currently implemented:
-
assertArraysEqual(arr1, arr2)
: given two arrays, logs to console a message confirming if arrays are equal or not equal. -
assertEqual(actual, expected)
: given two values, logs to console a message confirming if values are equal or not equal. -
assertObjectsEqual(object1, object2)
: given two objects, logs to console a message confirming if objects are equal or not equal. -
countLetters(sentence)
: given a sentence as a string, returns object containing count (values) of each of the letters (keys) in sentence. -
countOnly(allItems, itemsToCount)
: given array of items and object(value: item, key: true/false), returns object of ONLY the count of items in array that were marked true in object. Returned object(value: item, key: count of item in array). -
eqArrays(arr1, arr2)
: given two arrays, returns true if arrays are equal or false if arrays are not equal. -
eqObjects(object1, object2)
: given two objects, return true if objects are equal or false if objects are not equal. -
findKey(object, callback)
: given object and callback, scans object for first key for which the callback returns truthy value and returns this key. If no key found, returns undefined. -
findKeyByValue(object, value)
: given object and value, scans object and returns first key which contains given value. If no key found with value, returns undefined. -
flatten(array)
: given array containing elements including nested arrays, returns 'flattened' array with only 1 nested array level. -
head(array)
: given array, returns first value of array. -
letterPositions(sentence)
: given sentence as a string, returns an object that shows all indices (values) where each letter (key) is found. -
map(array, callback)
: given array and callback, returns new array based on results of callback function. -
middle(array)
: given an array, return middle-most element(s) as array. Odd-length array will return array with 1 value, even-length array will return array with 2 values. -
tail(array)
: given array, return as array all values EXCEPT first value. -
takeUntil(array, callback)
: given array and callback, return slice of the array with elements taken from the beginning until callback returns truthy value. -
without(source, itemsToRemove)
: source array and 'items to remove' array, return new array with only elements from 'source' array that are NOT present in 'items to remove' array.