length

Get the number of parameters of a function.

Similar: name, length.

function length(x)
// x: a function

const xasyncfn = require('extra-async-function');


xasyncfn.length(() => 0);
// → 0

xasyncfn.length((x, y) => 0);
// → 2

References

• Function.prototype.length: MDN Web docs