A mini clone of the Lodash library.
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.
Install it:
npm install @gckey/lotide
Require it:
const _ = require('@gckey/lotide');
Call it:
const results = _.tail([1, 2, 3]) // => [2, 3]
The following functions are currently implemented:
head: A function that returns the first element of an array.tail: A function that returns a new array containing all elements of the input array except the first element.middle: A function that returns the middle element(s) of an array. If the array has an odd length, it returns a single middle element. If the array has an even length, it returns an array with the two middle elements.assertArraysEqual: A function that compares two arrays and checks if they are equal. It outputs a message indicating whether the arrays are equal or not.assertEqual: A function that compares two values and checks if they are equal. It outputs a message indicating whether the values are equal or not.assertObjectsEqual: A function that compares two objects and checks if they are equal. It outputs a message indicating whether the objects are equal or not.countLetters: A function that takes in a string and returns an object with each unique letter as a key and the count of occurrences as the value.countOnly: A function that takes in an array and an object specifying which elements to count. It returns an object with the count of occurrences for the specified elements.eqArrays: A function that compares two arrays and checks if they are deeply equal. It returns a boolean value indicating whether the arrays are equal or not.eqObjects: A function that compares two objects and checks if they are deeply equal. It returns a boolean value indicating whether the objects are equal or not.findKey: A function that takes in an object and a callback function. It searches for a key in the object based on the condition specified by the callback function and returns the key.findKeyByValue: A function that takes in an object and a value. It searches for a key in the object that matches the specified value and returns the key.flatten: A function that takes in an array containing nested arrays and returns a new flattened array with all the elements.letterPositions: A function that takes in a string and returns an object with each unique letter as a key and an array of positions where the letter occurs in the string as the value.map: A function that takes in an array and a callback function. It applies the callback function to each element of the array and returns a new array with the modified elements.takeUntil: A function that takes in an array and a callback function. It keeps collecting elements from the array until the callback function returns a truthy value. It returns a new array with the collected elements.without: A function that takes in two arrays: the source array and an array of items to remove. It returns a new array with all the items from the source array except the ones specified for removal.