### coalesceFactory Returns a customized coalesce function that returns the first argument that returns `true` from the provided argument validation function. Use `Array.find()` to return the first argument that returns `true` from the provided argument validation function. ```js const coalesceFactory = valid => (...args) => args.find(valid); ``` ```js const customCoalesce = coalesceFactory(_ => ![null, undefined, '', NaN].includes(_)); customCoalesce(undefined, null, NaN, '', 'Waldo'); // "Waldo" ```