Adapter
-promisify
+
collectInto
+
Changes a function that accepts an array into a variadic function.
+Given a function, return a closure that collects all inputs into an array-accepting function.
+const collectInto = fn => ( ...args ) => fn( args );
+/*
+const Pall = collectInto( Promise.all.bind(Promise) )
+let p1 = Promise.resolve(1)
+let p2 = Promise.resolve(2)
+let p3 = new Promise((resolve) => setTimeout(resolve,2000,3))
+Pall(p1, p2, p3).then(console.log)
+*/
+promisify
Converts an asynchronous function to return a promise.
Use currying to return a function returning a Promise that calls the original function.
Use the ...rest operator to pass in all the parameters.