Test whether all promises passes a testing function
Like Array.every for promises.
$ npm install --save p-every
const pEvery = require('p-every');
const getContinent = require('get-continent'); // not a real module
const places = [
getCapital('Norway').then(info => info.name),
'Bangkok, Thailand',
'Berlin, Germany',
'Tokyo, Japan'
];
const testFunction = async place => {
const continent = await getContinent(place);
return continent === 'europe';
}
(async () => {
const result = await pEvery(places, testFunction);
console.log(result);
//=> false
})();Returns a Promise that is fulfilled when all promises in input and ones returned from testFunction are fulfilled, or rejects if any of the promises reject. The fulfilled value is a boolean that is true if all Promises passed the test and false otherwise.
Type: Iterable<Promise|any>
Iterated over concurrently in the testFunction function.
Type: Function
Predicate function, expected to return a Promise<boolean> or boolean.
Type: Object
Type: number
Default: Infinity
Minimum: 1
Number of concurrently pending promises returned by testFunction.
- p-filter - Filter promises concurrently
- p-locate - Get the first fulfilled promise that satisfies the provided testing function
- p-map - Map over promises concurrently
- More…
MIT © Kevin Martensson