Package Exports

promisefy-util

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promisefy-util

Convert function with callback to promise

common function with callback

function func(para, _cb) {
    setTimeout(()=>{
        let err = null;
        let result = para*2;
        _cb(err, result);		
    }, para);
}

convert to promise

let ret;
try {
    ret = await pf.promisefy(func, [100]);
}catch(err){
    console.log("Err: ", err);
    return;
}

array forEach with promise

let v = [2000, 3000, 1000];
let ps = v.map(function(item, index){
    return pf.promisefy(func, [item]);
})	
let ret = await Promise.all(ps);
console.log("ret: ", ret);