method Counter.add

Adds n (>= 0; a negative amount is ignored).

Example:

use std.obs { metric }

fn main() io {
  let c = metric.counter("docs_add_total")
  c.add(2.5)
  c.add(-1.0)
  print("{c.value()}")
}

2.5

pub(api) fn add(n: f64) io

Complexity. O(1).

Since. 1.0.0-beta

Parameters

Effects

io

Defined in: std/obs/obs.oxl:559