Created
August 25, 2017 15:22
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Improper async forEach loop
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| // define a Promise wrapper around the setTimeout function | |
| function wait (fn, time) { | |
| return new Promise(resolve => setTimeout(() => {fn();resolve();}, time)); | |
| } | |
| const arr = ['a', 'b', 'c', 'd']; | |
| // if we want to call an async function for each element in the array | |
| // in series, this would not work: | |
| arr.forEach(async (item, index) => { | |
| await wait (() => console.log(item), 500); | |
| }); |
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