defered

defered is a type safe (for typescript) library for go like defer functionalities.

npm i defered

``ts
import * as defered from 'defered';

const test = defered.sync((defer) => (name: string): string => {
defer((result, err) => {
if (err) {
return 'something went wrong';
}
return 'nihao, ' + name;
}) // last
defer((result, err) => {
if (err) {
return 'something went wrong';
}
return 'hola, ' + name;
}) // first
if (Date.now() % 2 == 1) throw new Error('oops');
return 'hello,' + name;
});

const test2 = defered.async((defer) => async (name: string): string => {
defer(async (result, err) => {
if (err) {
return 'something went wrong';
}
return 'nihao, ' + name;
})
if (Date.now() % 2 == 1) throw new Error('oops');
return 'hello,' + name;
});

test('xiaoming'); // should be 'nihao, xiaoming' or 'something went wrong'
testAynsc('xiaoming2').then(...);
``