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.
Count occurrences
JavaScript, Array
Counts the occurrences of a value in an array.
Every nth element
JavaScript, Array
Returns every
nthelement in an array.Freeze Set object
JavaScript, Array
Creates a frozen
Setobject.Initialize 2D array
JavaScript, Array
Initializes a 2D array of given width and height and value.
Array intersection
JavaScript, Array
Returns the elements that exist in both arrays, filtering duplicate values.
Nth element
JavaScript, Array
Returns the nth element of an array.
Insertion index in sorted array
JavaScript, Array
Finds the lowest index at which a value should be inserted into an array in order to maintain its sorting order.
Transpose matrix
JavaScript, Array
Transposes a two-dimensional array.
Filter out matching array elements
JavaScript, Array
Filters out the elements of an array that have one of the specified values.
How do I empty an array in JavaScript?
JavaScript, Array
You can use a lot of different techniques to empty an array in JavaScript. See which ones best suits your needs with this quick guide.
Convert function to variadic
JavaScript, Function
Changes a function that accepts an array into a variadic function.
First n elements
JavaScript, Array
Gets the first
nelements of an array.Last n elements
JavaScript, Array
Gets the last
nelements of an array.Median
JavaScript, Math
Calculates the median of an array of numbers.
Last insertion index in sorted array
JavaScript, Array
Finds the highest index at which a value should be inserted into an array in order to maintain its sort order.