Javascript

Swap the rows and columns of a matrix

This function swaps the rows and columns of a 2D array, also known as ‘transposing’ a matrix. JavaScript: TypeScript:

Get all subsets of an array

This function generates all possible subsets of an array. JavaScript: TypeScript:

Sort an array of numbers

This function sorts an array of numbers in ascending order. JavaScript: TypeScript:

Get the rank of an array of numbers

This function returns an array with the same length as the input array, where each element is the rank of…

Zip multiple arrays

This function ‘zips’ multiple arrays, merging them into one array of tuples, where the first element of each input array…

Get the unique values of an array

This function removes all duplicate values from an array. JavaScript: TypeScript:

Swap two array items

This function swaps two items in an array based on their indices. JavaScript: TypeScript:

Get the sum of an array of numbers

This function calculates the sum of all the numbers in an array. JavaScript: TypeScript:

Get union of arrays

This function returns an array that contains all unique elements of two or more arrays. JavaScript: TypeScript:

Group an array of objects by a key

This function groups an array of objects by a certain key. JavaScript: TypeScript: