JavaScript Math 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.
Array ranking
JavaScript, Array
Calculates the ranking of an array based on a comparator function.
Mapped array sum
JavaScript, Math
Calculates the sum of an array, after mapping each element to a value using the provided function.
Partial sum array
JavaScript, Math
Creates an array of partial sums.
Reverse number
JavaScript, Math
Reverses a number.
Geometric progression
JavaScript, Math
Initializes an array containing the numbers in the specified geometric progression range.
Integer to roman numeral
JavaScript, Math
Converts an integer to its roman numeral representation. Accepts value between
1and3999(both inclusive).Max array value based on function
JavaScript, Math
Returns the maximum value of an array, after mapping each element to a value using the provided function.
N max elements
JavaScript, Array
Returns the
nmaximum elements from the provided array.Min array value based on function
JavaScript, Math
Returns the minimum value of an array, after mapping each element to a value using the provided function.
N min elements
JavaScript, Array
Returns the
nminimum elements from the provided array.Pretty-print number of bytes
JavaScript, String
Converts a number in bytes to a human-readable string.
Insertion index in sorted array based on function
JavaScript, Array
Finds the lowest index at which a value should be inserted into an array in order to maintain its sorting order, based on the provided iterator function.
How can I remove trailing zeros from a number in JavaScript?
JavaScript, Math
When formatting decimal values in JavaScript, trailing zeros can be undesired. Here's how to deal with them.
Cross product of arrays
JavaScript, Array
Creates a new array out of the two supplied by creating each possible pair from the arrays.
Fibonacci
JavaScript, Math
Generates an array, containing the Fibonacci sequence, up until the nth term.