coalesceFactory
Customizes a coalesce function that returns the first argument which is true based on the given validator.
Use
Array.prototype.find()
to return the first argument that returnstrue
from the provided argument validation function,valid
.
const coalesceFactory = valid => (...args) => args.find(valid);
const customCoalesce = coalesceFactory(
v => ![null, undefined, '', NaN].includes(v)
);
customCoalesce(undefined, null, NaN, '', 'Waldo'); // 'Waldo'
Last updated
Was this helpful?