If I want to get the result of a Promise from my node-testing console, how would I do that?
eg.
let promise = new Promise(() => {
console.log('my promise');
}
promise.then(() => { console.log('resolved') })
// returns a Promise {<pending>}
await promise.then(() => { console.log('resolved') })
// still returns just a Promise
(async () => {
await promise
})()
// still returns ... just a Promise
Ultimately I'm trying to test promise results (database queries) from my node console at a breakpoint, and I just keep getting Promises returned.
UPDATE - I guess this is more complicated than I thought. Because know one has been able to answer.
I understand how to get the results of a promise in a regular environment. I'm talking about getting results at a breakpoint while debugging a Node application. To connect to the console I'm referring to please follow these directions: https://medium.com/@paul_irish/debugging-node-js-nightlies-with-chrome-devtools-7c4a1b95ae27
From the console in DevTools, promises keep returning Promise {}. I do not know if it is possible to get the value of the promise, but if anyone knows either way please let me know.
when you create a promise object you should use this syntax
var promiseObj = new Promise(executor);
the executor is a function with this signature
function(resolutionFunc, rejectionFunc){
// typically, some asynchronous operation.
}
When we go back to your specific example, you can define it as
let promise = new Promise( resolve => {
resolve("my promise")
})
Note I havent added the reject function
then you can do
promise.then(value => console.log(value))
you can find a detailed description here
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