JavaScript Array Snippets
The JavaScript snippet collection contains a wide variety of ES6 helper functions. It includes helpers for dealing with primitives, arrays and objects, as well as algorithms, DOM manipulation functions and Node.js utilities.
Array permutations
JavaScript, Array
Generates all permutations of an array's elements (contains duplicates).
Compact object
JavaScript, Object
Deeply removes all falsy values from an object or array.
Quick sort
JavaScript, Algorithm
Sorts an array of numbers, using the quicksort algorithm.
Selection sort
JavaScript, Algorithm
Sorts an array of numbers, using the selection sort algorithm.
Count grouped elements
JavaScript, Array
Groups the elements of an array based on the given function and returns the count of elements in each group.
Group array elements
JavaScript, Array
Groups the elements of an array based on the given function.
How do I merge two arrays in JavaScript?
JavaScript, Array
Arrays are one of the most used data types in any programming language. Learn how to merge two arrays in JavaScript with this short guide.
Index array based on function
JavaScript, Array
Creates an object from an array, using a function to map each value to a key.
Filter matching and unspecified values
JavaScript, Array
Filters an array of objects based on a condition while also filtering out unspecified keys.
Remove list elements from the end until condition is met
JavaScript, Array
Removes elements from the end of an array until the passed function returns
true. Returns the removed elements.Remove list elements from the end while condition is met
JavaScript, Array
Removes elements from the end of an array until the passed function returns
false. Returns the removed elements.Learn the basics of the destructuring assignment syntax in JavaScript ES6 and improve your code with this easy guide.
Map array to object
JavaScript, Array
Maps the values of an array to an object using a function.
Stable sort
JavaScript, Array
Performs stable sorting of an array, preserving the initial indexes of items when their values are the same.
Understanding the spread and rest syntax in Javascript
JavaScript, Array
JavaScript ES6 introduced us to several powerful features, such as the spread and rest syntax. Learn everything you need to know in this quick guide.