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This release is 1 version behind 0.1.2 — the latest version of @revosw/hhmm. Jump to latest

@revosw/hhmm@0.1.1

Utility for doing math on strings in the format "hh:mm", such as adding, subtracting, intersection testing and modulo

This package works with Node.js, Deno, Bun, BrowsersIt is unknown whether this package works with Cloudflare Workers
It is unknown whether this package works with Cloudflare Workers
This package works with Node.js
This package works with Deno
This package works with Bun
This package works with Browsers
JSR Score
94%
Published
a year ago (0.1.1)

hhmm library logo

Handle HH:MM calculations with ease

This library makes it easy to do the following:

  • Adding and subtracting times
// Using class instances
const add1 = new HHMM("08:00").add("01:00")
    // ^? = HHMM { minute = 540 }
const sub1 = new HHMM("08:00").subtract("00:15")
    // ^? = HHMM { minute = 465 }

// Using the HM symbol property
const add2 = "08:00"[HM].add("09:00")
const sub2 = "08:00"[HM].subtract("09:00")
  • Divide
// Using class instances
const newTime = new HHMM("08:00").subtract("09:00")

// Using the HM symbol property
const newTime = "08:00"[HM].subtract("09:00")

Symbol property mode

You will suffer if you try to

It is tiresome having to create class instances all the time for the simplest things.

const from = new HHMM("08:00")
const to = new HHMM("09:00")

if (from.lt(to)) {
    // from < to
}

if (new HHMM("08:00") < new HHMM("09:00"))

Problems with structuredClone()

Since class instances

Problems with React

Problems with TanStack Query

The query cache does not like

While it's possible to use the

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Add Package

deno add jsr:@revosw/hhmm

Import symbol

import * as hhmm from "@revosw/hhmm";
or

Import directly with a jsr specifier

import * as hhmm from "jsr:@revosw/hhmm";

Add Package

pnpm i jsr:@revosw/hhmm
or (using pnpm 10.8 or older)
pnpm dlx jsr add @revosw/hhmm

Import symbol

import * as hhmm from "@revosw/hhmm";

Add Package

yarn add jsr:@revosw/hhmm
or (using Yarn 4.8 or older)
yarn dlx jsr add @revosw/hhmm

Import symbol

import * as hhmm from "@revosw/hhmm";

Add Package

vlt install jsr:@revosw/hhmm

Import symbol

import * as hhmm from "@revosw/hhmm";

Add Package

npx jsr add @revosw/hhmm

Import symbol

import * as hhmm from "@revosw/hhmm";

Add Package

bunx jsr add @revosw/hhmm

Import symbol

import * as hhmm from "@revosw/hhmm";