Synsema docsENES

Time & random

time-random.syn
-- Doc example: time & random. `time` is auto-granted; `random` is NOT (deny-by-default).
intent: "doc example: time and random"
require random

print("epoch 0 = " + format_time(0) + ",  a die roll = " + text(random_int(1, 6)))

test "format_time / parse_time round-trip (UTC, ISO-8601)"
    assert_eq(format_time(0), "1970-01-01T00:00:00Z")
    assert_eq(parse_time("1970-01-01T00:00:00Z"), 0)
    assert(now() > 1000000000)

test "random needs `require random`; values land in range"
    let r be random()
    assert(r >= 0 and r < 1)
    let d be random_int(1, 6)
    assert(d >= 1 and d <= 6)

Time

time is auto-granted under run/test (declare require time under serve).

now()                               -- unix timestamp (number)
format_time(now())                  -- ISO-8601 UTC by default
format_time(t, "%Y-%m-%d %H:%M")    -- strftime pattern
parse_time("2026-06-30T12:00:00Z")  -- inverse of format_time
sleep(seconds)                      -- pause

Random — deny-by-default

Unlike many languages, random needs require random even under run — because randomness is used for tokens and nonces, it's a capability, not a freebie.

require random
random()            -- float in [0, 1)
random_int(1, 6)    -- integer in [min, max]