// Define function
function wait(timeMS, callback) {
const f = new Promise((resolve) => {
setTimeout(() => {
resolve();
}, timeMS);
});
if (!callback) return f;
f.then(() => callback()).catch((err) => callback(err));
}
// Use with as a promise
wait(500)
.then(() => console.log('Promise executed'))
.catch((err) => console.log(err));
// Use with a callback
wait(1000, function (err) {
if (err) {
console.log(`Callback errored: ${err.toString()}`);
} else {
console.log('Callback executed');
}
});
Created
September 22, 2022 07:49
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Make javascript function which supports promise and callback
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