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.
Remove list elements from the end until condition is met
Removes elements from the end of an array until the passed function returns
true. Returns the removed elements.JavaScript, Array · Nov 29, 2020
Remove list elements from the end while condition is met
Removes elements from the end of an array until the passed function returns
false. Returns the removed elements.JavaScript, Array · Nov 29, 2020
Array to HTML list
Converts the given array elements into
<li>tags and appends them to the list of the given id.JavaScript, Browser · Oct 20, 2020
Count grouped elements
Groups the elements of an array based on the given function and returns the count of elements in each group.
JavaScript, Array · Nov 3, 2020
Group array elements
Groups the elements of an array based on the given function.
JavaScript, Array · Oct 22, 2020
How do I merge two arrays in JavaScript?
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.
JavaScript, Array · Jun 12, 2021
Index array based on function
Creates an object from an array, using a function to map each value to a key.
JavaScript, Array · Jun 20, 2021
Where and how can I use the destructuring assignment syntax in JavaScript?
Learn the basics of the destructuring assignment syntax in JavaScript ES6 and improve your code with this easy guide.
JavaScript, Array · Jun 12, 2021
JavaScript array filtering tips
A few tips and tricks to help you filter arrays in JavaScript more efficiently.
JavaScript, Array · Sep 28, 2022
Array to flags object
Converts an array of strings into an object mapping to true.
JavaScript, Array · Apr 12, 2022
Array to object based on key
Creates an object from an array, using the specified key and excluding it from each value.
JavaScript, Array · Jun 27, 2021
Map array to object
Maps the values of an array to an object using a function.
JavaScript, Array · Oct 21, 2020
Most frequent element in array
Returns the most frequent element in an array.
JavaScript, Array · Sep 15, 2020
Map an array to an object
Maps an object array to an object, using the provided mapping functions.
JavaScript, Array · Feb 4, 2023
Replace or append array value
Replaces an item in an array or appends it, if it doesn't exist.
JavaScript, Array · Feb 19, 2023
