nity Examples</a></div><hr><div class="binding"><span id="debug/fbreak" class="binding-sym">debug/fbreak</span> <span class="binding-type">cfunction</span> <span class="binding-type"><a href="https://github.com/janet-lang/janet/blob/c28df14/src/core/debug.c#L245">source</a></span> <pre class="binding-text">(debug/fbreak fun &amp;opt pc)

Set a breakpoint in a given function. pc is an optional offset, which is in bytecode instructions. fun is a function value. Will throw an error if the offset is too large o