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itera for promise iteration needs. Mix generators and promises for better control flow. Made this for my personal workflow. Most likely co will be a better solution for you.
If you do not understand JavaScript generators see:
see tests for code that matches the README.
const Generator = function * () {
// ERRORS AND YIELDING PROMISES
// if a promise executes and resolves with an error.
// The value of the error resolution "reject()" is placed in the
// variable associated with the yield.
const result1 = yield step1();
if (result1 instanceof Error) {
// console.log(typeof result1);
// console.log(result1.message);
// console.log(result1.name);
// console.log('ERROR');
return callback(result1, null);
}
// result1 yield SUCCESS DO STUFF with result1
console.log(result1);
const result2 = yield step2();
if ( (result2.name !== undefined) && (result2.name === 'Error')) {
// HANDLE THE ERROR
// console.log(result2.message);
// console.log(result2.name);
console.log('ERROR');
return; // exit the generator.
}
console.log(result2);
// return; exits generator early if error exists.
const result3 = yield step3();
if ( (result3.name !== undefined) && (result3.name === 'Error')) {
// console.log(typeof result3);
// console.log(result3.message);
// console.log(result3.name);
// console.log(result3);
console.log('ERROR');
}
console.log(result3);
return;
};
const callback = function (err, result) {
// do stuff after generator is complete.
};
Itera(Generator, callback);
JavaScript Ninja Second Edition p. 159 listing-6.19.html
;-)
FAQs
mix generators and promises
The npm package itera receives a total of 3 weekly downloads. As such, itera popularity was classified as not popular.
We found that itera demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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