1 Matching Annotations
  1. Mar 2023
      • Matches by Object property ```js const { matches } = require('z')

      const person = { name: 'Maria' } matches(person)( (x = { name: 'John' }) => console.log('John you are not welcome!'), (x) => console.log(Hey ${x.name}, you are welcome!) ) - Matches by type or instancesjs const { matches } = require('z')

      const result = matches(1)( (x = 2) => 'number 2 is the best!!!', (x = Number) => number ${x} is not that good, (x = Date) => 'blaa.. dates are awful!' )

      console.log(result) // output: number 1 is not that good - Matches Array contentjs const { matches } = require('z')

      matches([1, 2, 3, 4, 5])( (a, b, c, tail) => 'a = 1, b = 2, c = 3, tail = [4, 5]'<br /> )

      matches([1, 2])( (a, tail) => 'a = 1, tail = [2]'<br /> )

      matches([1])( (a, b, tail) => 'Will not match here', (a = 2, tail = []) => 'Will not match here', (a = 1, tail) => 'Will match here, tail = []' ) ```

      • Powerful recursive code which will remove sequential repeated items from Array ```js const { matches } = require('z')

      const compress = (numbers) => { return matches(numbers)( (x, y, xs) => x === y ? compress([x].concat(xs)) : [x].concat(compress([y].concat(xs))), (x, xs) => x // stopping condition ) }

      compress([1, 1, 2, 3, 4, 4, 4]) //output: [1, 2, 3, 4] ```