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joplin/packages/lib/promise-utils.js
2020-11-05 16:58:23 +00:00

13 lines
271 B
JavaScript

function promiseChain(chain, defaultValue = null) {
let output = new Promise((resolve) => {
resolve(defaultValue);
});
for (let i = 0; i < chain.length; i++) {
const f = chain[i];
output = output.then(f);
}
return output;
}
module.exports = { promiseChain };