0.1.0 • Published 6 years ago
async-reader v0.1.0
async-reader
async-reader is a library to deal with asynchronous readers: computations with access to some read-only context.
This is package is experimental and it is under active development. Expect backward-incompatible changes
Introduction
You define readers by chaining them with other readers:
const {ask} = require('async-reader')
const getVersion = ask.then(context => context.version)
function f () {
return getVersion.then(version=>{
if (version === 1){
console.log('hello')
} else {
console.log('bye')
}
return version
})
}
the ask
reader is a built-in reader that just returns the whole
context. You can define a derived reader by calling .then
, which
will be called with the return value of the previuos reader.
If you return a Promise or another Reader, the resolved value of those will be passed to the next reader.
Finallhy, you can provide the context to the function at the top of your stack:
f().run({version: 2})
Installation
You can install this package with
npm install async-reader
0.1.0
6 years ago