Every Day Carry (EDC)

A petite set of utilities which might've been in the JavaScript standard library of an alternate universe.

Module is

For determining whether the value at a reference is of some type.

General

name	about
every	sees if every value meets every condition
isType	returns the name of a type as a string

Collection

name	about
isEmpty	static methods to check if a collection is empty
isArrayLike	checks if array or typed array
isObjectLike	dictionary-like object
isTypedVec
isVector	a vector is a non-empty list of arithmetic numbers
notSparse	sometimes JS arrays are "sparse" and react surprisingly to length and map

Numeric

name	about
isCounting	1, 2, 3, ...
isNatural	0, 1, 2, ...
isNegative	checks if an arithmetic Number or BigInt is arithmetically negative
isScalar	checks if a Number is arithmetic, suitable for addition and multiplication

Module constants

name	about
table	console.table
log	console.log
sin	Math.sin
cos	Math.cos
π	Math.PI
QUOTES	RegEx for single and double quotes
SPACE	' '
CHAR	''
ALPHABET	abc...xyz

Module math

name	about
θtoπ	convert degrees to radians
πtoθ	convert radians to degrees
gcd	greatest common divisor of some numbers
lcm	least common multiple of some numbers
distance	finds the euclidian distance between two vectors
factorial	finds the n-th factorial of a number as BigInt
combination	from set of size n choose subsets of size k

Module iteration

Utilities relating to array-like collections.

name	about
naturals	generator for 0...n
slimObj	strip prototype from an object
unfold	process a value into a list while a condition
lazyUnfold	generator for iterative unfold
transpose	swaps the rows and columns of a 2-dimensional array
randoms

Module asserts

name	about
言	consumes a value and throws it -- specifically for the ternary operator