breakpointFor

function · packages/primitives/src/media/breakpoints.ts:20

function breakpointFor(
  width: number,
  breakpoints: Readonly<Record<string, number>>,
): string | null

The breakpoint a width falls in: the name with the largest threshold at or below it, or null below every threshold. Breakpoints uses it; a view that has a width of its own can too.