Time a function: Difference between revisions

=={{header|BQN}}==

To execute a function <code>F</code> once and get the amount of time it took to execute with value <code>v</code>, you can do this:

<lang bqn>F •_timed v</lang>

<code>•_timed</code> is a system value that runs <code>F</code> a set number of times and returns the average runtime of the function. Here, since the left argument <code>𝕨</code> is omitted, it is run once.

The final result is in seconds.

Here are a few example runs:

<lang bqn> {0:1;𝕩×𝕊𝕩-1}•_timed 100

8.437800000000001e¯05

{0:1;𝕩×𝕊𝕩-1}•_timed 1000

0.000299545</lang>