asyncReduce

Combine Promise and Array.prototype.reduce into asyncReduce

Use

``js
const asyncReduce = require('asyncReduce');

const list = [1,2,3,4,5];

async function sleep(time){
await new Promise((resolve) => {
setTimeout(resolve, time);
});
}

asyncReduce(list, async (pre,cur,index,array)=>{
const totle = pre + cur;
console.log(totle);
await sleep(1000);
return totle;
},0)
.then(value => console.log(value))
.catch(err=> console.log(err));

`


output:

`js
1
(after 1000ms)
3
(after 1000ms)
6
(after 1000ms)
10
(after 1000ms)
15
(after 1000ms)
15
``