lamansky

remove-suffix

Removes a string from the end of another string.

roadblock

A simple function for interrupting program flow if a condition isn’t met.

ascii-whitespace

A regular expression for ASCII/HTML whitespace, as defined by W3C and WHATWG.

has-property

Tests whether an object possesses a property. Like hasOwnProperty(), but checks the entire prototype chain.

nearest-number

From a list of numbers, picks the one closest to a given target.

weakable

Returns true if a value can be used as a WeakSet item or a WeakMap key.

weakish-set

It’s like WeakSet but it supports non-objects.

is-new

A function that remembers the values passed to it and returns true if a value is new.

if-else-throw

If X, return Y, else throw Z.

get-own-property

Retrieves a property only if hasOwnProperty() is true.

m-o

Functions that work on both Maps and Objects: has, get, set, delete, entries, keys, values, etc.

enforce-range

Enforce a minimum and/or maximum value for a number.

filter-iter

Filters an iterable object so that it only yields values which pass a test function.

unique-iterable

Filters an iterable object so it doesn’t yield the same value more than once.

unique-iterable-by

Filters yielded values by testing uniqueness with an index, key, or callback.

unique-map

Returns a copy of a Map or Object with duplicate values removed.

unique-object

Returns a copy of an Object or Map with duplicate values removed.

unique-map-by

Filters a Map or Object by testing entry uniqueness with a callback.

unique-array-by

Filters an array by testing uniqueness with a callback, an index, or a key.

unique-object-by

Filters an Object or Map by testing entry uniqueness with a callback.

mix-in

Turns a set of functions into a mix-in/trait that can extend a class.

is-iterator

Returns true if an object is an iterator.

rtrim-array

Removes specified values from the end of an array.

trim-apply

Drops undefined arguments from the end of a function call.

trim-call

Drops undefined arguments from the end of a function call.