Favorite JavaScript Utilities

Cast a value as an array

Check if an array is empty

Clone an array

Compare two arrays regardless of order

Compare two arrays

Convert an array of objects to a single object

Convert an array of strings to numbers

Count by the properties of an array of objects

Count the occurrences of a value in an array

Count the occurrences of array elements

Create an array of cumulative sum

Create an array of numbers in the given range

Create cartesian product

Empty an array

Find the closest number from an array

Find the index of the last matching item of an array

Find the index of the maximum item of an array

Find the index of the minimum item of an array

Find the length of the longest string in an array

Find the maximum item of an array by given key

Find the maximum item of an array

Find the minimum item of an array by given key

Find the minimum item of an array

Flatten an array

Generate an array of alphabet characters

Get all arrays of consecutive elements

Get all n-th items of an array

Get all subsets of an array

Get indices of a value in an array

Get the average of an array

Get the intersection of arrays

Get the rank of an array of numbers

Get the sum of an array of numbers

Get the unique values of an array

Get union of arrays

Group an array of objects by a key

Intersperse element between elements

Merge two arrays

Partition an array based on a condition

Remove duplicate values in an array

Remove falsy values from array

Repeat an array

Shuffle an array

Sort an array of items by given key

Sort an array of numbers

Split an array into chunks

Swap the rows and columns of a matrix

Swap two array items

Unzip an array of arrays

Zip multiple arrays

Add AM PM suffix to an hour

Calculate the number of difference days between two dates

Calculate the number of months between two dates

Compare two dates

Convert a date to YYYY-MM-DD format

Convert seconds to hh:mm:ss format

Extract year, month, day, hour, minute, second and millisecond from a date

Format a date for the given locale

Get the current quarter of a date

Get the current timestamp in seconds

Get the day of the year from a date

Get the first date in the month of a date

Get the last date in the month of a date

Get the month name of a date

Get the number of days in given month

Get the timezone string

Get the tomorrow date

Get the total number of days in a year

Get the weekday of a date

Get the yesterday date

Initialize the current date but set time to midnight

Sort an array of dates

Check if an element is a descendant of another

Check if an element is focused

Check if the touch events are supported

Check if user scrolls to the bottom of the page

Detect Internet Explorer browser

Detect macOS browser

Get all siblings of an element

Get the position of an element relative to the document

Get the selected text

Go back to the previous page

Hide an element

Insert an element after other one

Insert an element before other one

Insert given HTML after an element

Insert given HTML before an element

Redirect to another page

Reload the current page

Replace an element

Scroll to top of the page

Serialize form data

Show an element

Strip HTML from a given text

Toggle an element

Box handler

Check if a value is a function

Check if a value is a generator function

Check if a value is an async function

Compose functions from left to right

Compose functions

Create a function that accepts a single argument

Create an empty function

Curry a function

Delay the evaluation of a function

Execute a function once

Flip the arguments of a function

Identity function

Logical xor operator

Memoize a function

Partially apply a function

Uncurry a function

Calculate the angle of a line defined by two points

Calculate the distance between two points

Calculate the linear interpolation between two numbers

Calculate the midpoint between two points

Check if a point is inside a rectangle

Check if a rectangle contains other one

Check if a rectangle overlaps other one

Convert degrees to radians

Convert radians to degrees

Normalize the ratio of a number in a range

Round a number to the nearest multiple of a given value

Check if the code is running in Jest

Check if the code is running in NodeJS

Check if the code is running in the browser

Clear all cookies

Convert 3 digits color to 6 digits color

Convert Celsius to Fahrenheit

Convert cookie to object

Convert Fahrenheit to Celsius

Convert hex to rgb

Convert rgb color to hex

Convert URL parameters to object

Decode a JWT token

Detect dark mode

Easing functions

Emulate a dice throw

Encode a URL

Generate an unique and increment id

Get the first defined and non null argument

Get the value of a cookie

Get the value of a param from a URL

Get type of a variable in string

Redirect the page to HTTPS if it is in HTTP

Run Promises in sequence

Swap two variables

Wait for an amount of time

Add an ordinal suffix to a number

Calculate Fibonacci numbers

Calculate the average of arguments

Calculate the division of arguments

Calculate the factorial of a number

Calculate the mod of collection index

Calculate the remainder of division of arguments

Calculate the sum of arguments

Clamp a number between two values

Compute the greatest common divisor between two numbers

Convert a number to equivalent characters

Convert a string to number

Convert decimal to binary recursively

Get the arrays of digits from a number

Multiply arguments

Prefix an integer with zeros

Round a number to a given number of digits

Subtract arguments

Truncate a number at decimal

Truncate a number to a given number of decimal places without rounding

Wrap a number between two values

Check if multiple objects are equal

Create an empty map that does not have properties

Create an object from the pairs of key and value

Extract values of a property from an array of objects

Get the value at given path of an object

Immutably rename object keys

Invert keys and values of an object

Omit a subset of properties from an object

Pick a subset of properties of an object

Remove all null and undefined properties from an object

Shallow copy an object

Sort an object by its properties

Generate a random boolean

Generate a random floating point number in given range

Generate a random hex color

Generate a random integer in given range

Generate a random IP address

Generate a random sign

Generate a random string from given characters

Generate a random string using Node crypto module

Generate a random string with given length

Generate a random UUID

Generate an array of random integers in a given range

Get a random item and remove it from an array

Get a random item from an array

Get random items of an array

Pick a random property of an object

Pick random lines from a text document

Capitalize a string

Check if a path is relative

Check if a string consists of a repeated character sequence

Check if a string is a palindrome

Check if a URL is absolute

Check if two strings are anagram

Convert a base64 encoded string to an uint8 array

Convert a letter to associate emoji

Convert a string to camelCase

Convert a string to PascalCase

Convert a string to URL slug

Convert a Windows file path to Unix path

Convert an uint8 array to a base64 encoded string

Convert camelCase to kebab-case and vice versa

Convert snake_case to camelCase

Convert the name of an Excel column to number

Count the number of words in a string

Count the occurrences of a character in a string

Decapitalize a string

Escape HTML special characters

Format a string

Generate a hash of a string

Get the base URL without any parameters

Get the file extension from a file name

Get the file name from a URL

Get the length of a string in bytes

Get the number of a character in a string

Make the first character of a string lowercase

Normalize file path slashes

Prepend a line number to each line of a text document

Remove duplicate lines of a text document

Remove empty lines of a text document

Remove spaces from a string

Repeat a string

Replace all line breaks with br elements

Replace all tab characters with spaces

Replace multiple spaces with a single space

Replace the first given number of characters of a string with another character

Reverse a string

Reverse the order of lines of a text

Sort lines of a text document in the alphabetical order

Sort the characters of a string in the alphabetical order

Strip ANSI codes from a string

Swap case of characters in a string

Trim slashes at the beginning and the end of a string

Trim some character

Trim the file extension from a file name

Truncate a string at full words

Unescape HTML special characters

Uppercase the first character of each word in a string

Check if a character is a digit

Check if a date is a weekday

Check if a date is a weekend

Check if a date is between two dates

Check if a date is today

Check if a date occurs in the current year

Check if a flat array has duplicate values

Check if a given integer is a prime number

Check if a number is a power of 2

Check if a number is even

Check if a number is in a given range

Check if a number is negative

Check if a number is odd

Check if a number is positive

Check if a string contains lower case characters

Check if a string contains only ASCII characters

Check if a string contains only digits

Check if a string contains only letters and numbers

Check if a string contains only letters

Check if a string contains upper case characters

Check if a string contains whitespace

Check if a string is a hexadecimal color

Check if a string is a hexadecimal number

Check if a string is a MongoDB ObjectId

Check if a string is an octal number

Check if a string is lower case

Check if a string is upper case

Check if a value is a business identifier code

Check if a value is a number

Check if a value is a plain object

Check if a value is a regular expression

Check if a value is a string

Check if a value is an object

Check if a value is base32 encoded

Check if a value is base58 encoded

Check if a value is base64 encoded

Check if a value is nil

Check if a year is leap year

Check if all array elements are equal to a given value

Check if all items in an array are equal

Check if an array contains a value matching some criterias

Check if an array is not empty

Check if an array is subset of other array

Check if an object is a Promise

Check if an object is an array

Check if an object is empty

Validate a Gregorian date