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.
Freeze Set object
JavaScript, Array
Creates a frozen
Setobject.Check if array has duplicates
JavaScript, Array
Checks if there are duplicate values in a flat array.
Array is sorted
JavaScript, Array
Checks if a numeric array is sorted.
Array without last element
JavaScript, Array
Returns all the elements of an array except the last one.
Array tail
JavaScript, Array
Returns all elements in an array except for the first one.
Last array element
JavaScript, Array
Returns the last element in an array.
Check if array elements are equal
JavaScript, Array
Checks if all elements in an array are equal.
Cast to array
JavaScript, Type
Casts the provided value as an array if it's not one.
Check if array includes all values
JavaScript, Array
Checks if all the elements in
valuesare included inarr.Check if array includes any values
JavaScript, Array
Checks if at least one element of
valuesis included inarr.Initialize array with values
JavaScript, Array
Initializes and fills an array with the specified values.
Head of array
JavaScript, Array
Returns the head of an array.
Array union
JavaScript, Array
Returns every element that exists in any of the two arrays at least once.