Parse durations, such as "1s", to its numerical millisecond value, e.g. 1_000.

Examples

iex>Durex.ms "3s"
{:ok, 3_000}

iex>Durex.ms "1h"
{:ok, 3600_000}

# Works with float too
iex>Durex.ms "0.5s"
{:ok, 500}

iex>Durex.ms "1.5h"
{:ok, 5400_000}

# Cannot ms duration less than 1ms | 1.0ms
iex>Durex.ms "0.5ms"
:error

# Fractional durations in ms will be truncated
iex>Durex.ms "1.5ms"
{:ok, 1}

Supported units

• ms (for millisecond)
• s (for second)
• m (for minute)
• h (for hour)
• d (for days)
• w (for week)

Performance Notes

• Parsing durations which include integers is about 4x faster than their version containing floats. So instead of parsing “0.5s”, use “500ms” for maximum performance.

• To benchmark, run: $ mix run bench/ms.exs