Easy Objects

• Una librería de utilidades que permite trabajar con arreglos y objetos en Javascript.

• A simple utility library for working with arrays and objects in JavaScript.

• Easy Objects

  • Installation
  • API Reference
    • Array Functions
      • average(arr)
      • deleteAtIndex(arr, index)
      • difference(arr1, ...rest)
      • intersection(...arrays)
      • isType(array, type)
      • isUnique(arr)
      • shuffle(array)
      • sort(array, order = 'asc')
      • sum(arr)
      • unique(arr)
    • Object Functions
      • merge(...objects)
      • omit(obj, keysToOmit)
      • pick(obj, keysToPick)
  • Information about the developer
  • Contributing
  • Licencia

Installation

npm install easy-objects

API Reference

This package exports 2 variables:

• one variable for arrays named 'arr'
• one variable for objects named 'obj'

Every variable contains methods definition. Methods are going to be listed down below.

import {arr, obj} from 'easy-objects'

console.log(arr.sum([1,2,3])) // returns 6

Array Functions

average(arr:number[])

Description: Calculates the average value of an array.

Parameters:

• arr: The input array of numbers.

Returns: The average value of the elements in the input array.

Example:

import {arr} from 'easy-objects'
const numbers = [1, 2, 3, 4, 5];
const averageValue = arr.average(numbers);
console.log(averageValue); // Output: 3

deleteAtIndex(arr, index:number)

Description: Removes an element from an array at a specific index.

Parameters:

• arr: The input array.
• index: The index of the element to remove.

Returns: A new array with the element at the specified index removed. If the index is out of bounds, the original array is returned.

Example:

import {arr} from 'easy-objects'
const numbers = [1, 2, 3, 4, 5];
const newArray = arr.deleteAtIndex(numbers, 2);
console.log(newArray); // Output: [1, 2, 4, 5]

difference(arr1, ...rest)

Description: Returns the difference between two or more arrays.

Parameters:

• arr1: The primary array to compare.
• ...rest: Additional arrays to compare with arr1.

Returns: A new array containing elements present in arr1 but not in any of the rest arrays.

Example:

import {arr} from 'easy-objects'
const array1 = [1, 2, 3, 4, 5];
const array2 = [3, 4, 5, 6, 7];
const array3 = [1, 2, 3];

const differenceArray = arr.difference(array1, array2, array3);
console.log(differenceArray); // Output: [1, 2]

intersection(...arrays)

Description: Returns the intersection of multiple arrays.

Parameters:

• ...arrays: One or more arrays to find the intersection of.

Returns: A new array containing elements present in all input arrays.

Example:

import {arr} from 'easy-objects'
const array1 = [1, 2, 3, 4, 5];
const array2 = [3, 4, 5, 6, 7];
const array3 = [1, 2, 3];

const intersectionArray = arr.intersection(array1, array2, array3);
console.log(intersectionArray); // Output: [3]

isType(array, type:string)

Description: Checks if all elements in an array are of a specific type.

Parameters:

• array: The input array.
• type: The expected data type of the array elements.

Returns: true if all elements are of the specified type, false otherwise.

Example:

import {arr} from 'easy-objects'
const numbers = [1, 2, 3, 4, 5];
const strings = ['a', 'b', 'c'];
const mixedArray = [1, 'a', true];

console.log(arr.isType(numbers, 'number')); // Output: true
console.log(arr.isType(strings, 'string')); // Output: true
console.log(arr.isType(mixedArray, 'number')); // Output: false

isUnique(arr)

Description: Checks if all elements in an array are unique.

Parameters:

• arr: The input array.

Returns: true if all elements are unique, false otherwise.

Example:

import {arr} from 'easy-objects'
const uniqueArray = [1, 2, 3, 4, 5];
const nonUniqueArray = [1, 2, 3, 2, 4];

console.log(arr.isUnique(uniqueArray)); // Output: true
console.log(arr.isUnique(nonUniqueArray)); // Output: false

shuffle(array)

Description: Shuffles the elements of an array randomly.

Parameters:

• array: The input array to be shuffled.

Returns: The shuffled array.

Example:

import {arr} from 'easy-objects'
const numbers = [1, 2, 3, 4, 5];
const shuffledNumbers = arr.shuffle(numbers);
console.log(shuffledNumbers); // Output: A randomly shuffled array

sort(array, order = 'asc')

Description: Sorts an array in ascending or descending order.

Parameters:

• array: The input array to be sorted.
• order: The sorting order, either 'asc' (ascending) or 'desc' (descending). Defaults to 'asc'.

Returns: The sorted array.

Example:

import {arr} from 'easy-objects'
const numbers = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5];

const ascendingNumbers = arr.sort(numbers);
console.log(ascendingNumbers); // Output: [1, 1, 2, 3, 3, 4, 5, 5, 5, 6, 9]

const descendingNumbers = arr.sort(numbers, 'desc');
console.log(descendingNumbers); // Output: [9, 6, 5, 5, 5, 4, 3, 3, 2, 1, 1]

sum(arr:number[])

Description: Calculates the sum of all elements in an array.

Parameters:

• arr: The input array of numbers.

Returns: The sum of all elements in the array.

Example:

import {arr} from 'easy-objects'
const numbers = [1, 2, 3, 4, 5];
const sumOfNumbers = arr.sum(numbers);
console.log(sumOfNumbers); // Output: 15

unique(arr)

Description: Removes duplicate elements from an array.

Parameters:

• arr: The input array.

Returns: A new array containing only unique elements from the input array.

Example:

import {arr} from 'easy-objects'
const numbers = [1, 2, 3, 2, 1, 4, 5, 4];
const uniqueNumbers = arr.unique(numbers);
console.log(uniqueNumbers); // Output: [1, 2, 3, 4, 5]

Object Functions

merge(...objects)

Description: Merges multiple objects into a single object.

Parameters:

• ...objects: One or more objects to merge.

Returns: A new object containing the merged properties of all input objects.

Example:

import {obj} from 'easy-objects'
const obj1 = { a: 1, b: 2 };
const obj2 = { c: 3, d: 4 };
const obj3 = { e: 5 };

const mergedObject = obj.merge(obj1, obj2, obj3);
console.log(mergedObject); // Output: { a: 1, b: 2, c: 3, d: 4, e: 5 }

omit(obj, keysToOmit:string[])

Description: Creates a new object by omitting specified keys from an existing object.

Parameters:

• obj: The input object.
• keysToOmit: An array of keys to omit from the new object.

Returns: A new object with the specified keys omitted.

Example:

import {obj} from 'easy-objects'
const person = { name: 'Alice', age: 30, city: 'New York', job: 'Engineer' };
const personWithoutJobAndCity = obj.omit(person, ['job', 'city']);
console.log(personWithoutJobAndCity); // Output: { name: 'Alice', age: 30 }

pick(obj, keysToPick:string[])

Description: Creates a new object by picking specified keys from an existing object.

Parameters:

• obj: The input object.
• keysToPick: An array of keys to pick from the object.

Returns: A new object containing only the specified keys and their corresponding values.

Example:

import {obj} from 'easy-objects'
const person = { name: 'Alice', age: 30, city: 'New York', job: 'Engineer' };
const personWithNameAndAge = obj.pick(person, ['name', 'age']);
console.log(personWithNameAndAge); // Output: { name: 'Alice', age: 30 }

Developer

This package is maintained by Juan José Zeledón Benavides

If you want to report a bug, please feel free to get in touch with me at:

• Github: juanjzb
• email: [email protected]

Contributing

Contributions are welcome!

• Visit the repository: https://github.com/juanjzb/easy-objects.git
• Fork the repository.
• Create a new branch.
• Make your changes.
• Commit your changes.
• Push to the branch.
• Submit a pull request.

License

This project is under MIT License.