parseDuration#

import { parseDuration } from 'janux';

parseDuration('300ms');   // 300
parseDuration('2s');      // 2000
parseDuration('5m');      // 300000
parseDuration('1.5h');    // 5400000

parseDuration(input: string): number — turns a duration string into milliseconds. It's the parser behind every duration field in Janux, so debounce: '300ms' and every('5m') accept exactly this grammar and nothing else.

Unit	Meaning
`ms`	milliseconds
`s`	seconds
`m`	minutes
`h`	hours

The number may be fractional ('1.5h', '0.5s'); the unit is required and must be one of the four above.

It throws on anything else#

There is no silent fallback — a typo throws instead of turning into a surprise interval. every('5min') fails where you wrote it; a bad debounce fails when the component attaches (that's when effects start):

parseDuration('5');       // throws: invalid duration "5" (use e.g. 300ms, 2s, 5m, 1h)
parseDuration('5min');    // throws — the unit is `m`
parseDuration('-5m');     // throws — durations are positive

Where durations appear#

effect({ debounce: '300ms', run: ({ state }) => save(state) })   // effect debounce
source({ query: fetchStock, refresh: every('5m') })              // source polling

You rarely call parseDuration yourself; import it when you're building your own helper that should accept the same strings the rest of the framework does.