Countif Packages

Compares objects and arrays and tells you which props or values are duplicates, and which are only present once.

An ECMAScript rewrite of Defract!

X Phage is a highly organised JavaScript utility library!

Count the number of falsy elements in an array.

Count the number of elements in an array which pass a test implemented by a predicate function.

Count the number of elements that are equal to a given value in an array.

Count the number of elements in an array that are equal to a specified value.

Count the number of truthy elements in an array.

A modern JavaScript utility library that delivers functions for data structures, calculations, and more!