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 @matiaswengiel/lotide
Require it:
const _ = require(' @matiaswengiel/lotide');
Call it:
const results = _.tail([1, 2, 3]) // => [2, 3]
The following functions are currently implemented:
assertArraysEqual(arrayOne, arrayTwo): Takes in two arrays and logs to the console whether they contain identical values at each index.assertEqual(actual, expected): Takes in any two primitive data types except symbol and bigint and logs to the console whether they are identical to each other.assertObjectsEqual(objectOne, objectTwo): takes in two objects and logs to the console whether they have identical key-value pairs.countLetters(string): Takes in a string and returns an object with each letter in the string and the number of occurrences of each.countOnly(allItems, itemsToCount): Takes in an array (allItems) of values and counts the number of occurrences of one or more values as determined in an object (itemsToCount). Returns an object with the count(s).eqArrays(arrayOne, arrayTwo): Takes in two arrays and compares them to see if they are equal. Returns true or false.eqObjects(object1, object2): Takes in two objects and compares them to see if they have the same key-value pairs. Returns true or false.findKey: Takes in an object and a callback function and returns the first key whose value matches the parameters of the callback function.findKeyByValue(object, value): Takes in an object and a value from a key-value pair, and returns its corresponding key.flatten(array): Takes in an array containing other arrays within it, and combines them into a single array.head(array): Takes in an array and returns the value stored at index 0.letterPositions(sentence): Takes in a string and returns an object with the indexes of where each letter in the string can be found.map(array, callback): Takes in an array and performs a callback function on each index, then returns a new array with the results.middle(array): Takes in an array and returns the value(s) at the mid-point of the array. Will return one value for arrays that have an odd .length property, and two for arrays that have an even .length property.tails(array): Takes in an array, removes the value at index zero and returns the new array containing all other values with their indexes shifted by one.takeUntil(array, callback): Takes in an array and pushes the value of each index to a new array until it the callback function returns true, then returns the new arraywithout(source, itemsToRemove): Takes in a source array and and array with items to remove from the source, and returns a third array that contains all of the items that were not removed from the first.