isValidUnixInterval

Signature

isValidUnixInterval(start: string | number, end: string | number): boolean

Return true if start and end form a valid Unix interval — both safe-integer epochs and start <= end.

• Each input must be a safe integer (Number.isSafeInteger) or a string of optionally negative ASCII digits naming one — the epoch grammar every unix/ function shares.
• Fractional values, NaN, ±Infinity and anything beyond ±(2^53 − 1) return false.
• Strings with whitespace, +, a decimal point, an exponent or hex digits return false, and an empty string is not epoch 0.
• Equal start === end is valid.

Parameters

Parameter	Type	Description
start	string | number	Unix epoch value, in the one unit all epoch arguments share — interval start
end	string | number	Unix epoch value, in the one unit all epoch arguments share — interval end

Returns

true if start and end form a valid Unix interval, or false on invalid input

Examples

import { isValidUnixInterval } from "@northguild/gmt/unix/interval";

isValidUnixInterval(0, 1700000000) // true

startend

output

 

Source

unix/interval/validate/isValidUnixInterval.ts