collOf

Usage: collOf(pred[,opts])

Returns a spec for a collection of items satisfying pred. Unlike 'every', collOf will exhaustively conform every value.

Same options as 'every'. conform will produce a collection corresponding to :into if supplied, else will match the input collection, avoiding rebuilding when possible.

Source

Example:

const s = require('speculaas');
const {isNumber, isVector} = s.utils;

// spec for vector with 3 unique numbers
s.def('::vnum3', s.collOf(isNumber, {kind: isVector, count: 3, distinct: true}));

s.isValid('::vnum3', [1, 2, 3]);
// true

s.isValid('::vnum3', [1, 2, 2]);
// false