assertcheck v1.0.0

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assertcheck / assert / mapsDistinct

Function: mapsDistinct()

function mapsDistinct<T, U>(
   fn, 
   a, 
   b, 
   opts?): void;

Defined in: src/assert.ts:1855

Asserts that fn(a) and fn(b) produce different results. Useful to detect hash collisions or identity-collapse bugs.

Type Parameters

Type Parameter
T
U

Parameters

Parameter	Type
fn	(v) => U
a	T
b	T
opts?	Opts

Returns

void

Example

`assert.mapsDistinct(hashFn, "user:1", "user:2", "hash collision")`