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promise-walk

v1.2.1

Published

Call array of promises in order (no resolve content will be reserved).

Downloads

1

Readme

promise.walk

Call promises in sequential order and return all the resolved contents to the callback function. (Rejected promise will not block the further promise execution.)

how to use?

Install dependence:

npm install promise-walk --save

Sample code:

const pw = require('promise-walk');

//define promises
var apple = function () { 
	return new Promise(function (resolve, reject) {
		setTimeout(function () { console.log('apple'); resolve('eat apple'); }, 3000);
	});
};

var orange = function () {
	return new Promise(function (resolve, reject) {
		setTimeout(function () { console.log('orange'); resolve('eat orange'); }, 1000);
	});
};

var banana = function () {
	return new Promise(function (resolve, reject) {
		setTimeout(function () { console.log('banana'); resolve('eat banana'); }, 2000);
	});
};

//call promises in sequential order and get back the results
pw.walk([apple, banana, orange], function (results) {
	console.log('All promise results are stored here:');
	console.log(results);
});

Result:

apple
banana
orange
All promise results are stored here:
[ 'eat apple', 'eat banana', 'eat orange' ]