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Getting Started

Quick examples of the most commonly used utilities.

Filter nulls from arrays​

import { notNull } from '@repo/utils'

const items = ['a', null, 'b', undefined, 'c']
const clean = items.filter(notNull)
// ['a', 'b', 'c'] -- typed as string[]

Filter object entries​

import { objectFilter } from '@repo/utils'

const scores = { alice: 90, bob: 45, carol: 78 }
const passing = objectFilter(scores, (score) => score >= 50)
// { alice: 90, carol: 78 }

Format dates​

import { format, parseISO, dateFormat } from '@repo/utils'

const date = parseISO('2024-06-15T10:30:00Z')
format(date, dateFormat)
// '2024-06-15'

Slugify strings​

import { slugify } from '@repo/utils'

slugify('Hello World! 123')
// 'hello-world-123'

Resolve named promises​

import { promiseMap } from '@repo/utils'

const result = await promiseMap({
  user: fetchUser(id),
  posts: fetchPosts(id),
})
// result.user, result.posts -- fully typed