Created
January 9, 2018 16:29
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| function sequence(list, results, resolve, reject) { | |
| if (!results) { | |
| return new Promise((resolve, reject) => sequence(list, [], resolve, reject));//first time | |
| } else { | |
| if (!results){ | |
| results = [];//one time | |
| } | |
| if (list.length == 0) { | |
| return resolve(results);//last time | |
| } else { | |
| list[0]().then(result => { //each time | |
| results.push(result); | |
| list.splice(0, 1); | |
| sequence(list, results, resolve, reject); | |
| }).catch(err => { | |
| reject(err); | |
| }); | |
| } | |
| } | |
| } | |
| //Testing | |
| /* | |
| sequence([ | |
| () => new Promise((resolve, reject) => { | |
| setTimeout(() => { | |
| console.log('Foo'); | |
| resolve('Foo rocks!'); | |
| },2000); | |
| }), | |
| () => new Promise((resolve, reject) => { | |
| setTimeout(() => { | |
| console.log('Bar'); | |
| resolve('Bar completed'); | |
| },3000); | |
| }) | |
| ]).then(results => { | |
| console.log('YES!', results) | |
| }) | |
| */ |
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