Get the value of a promise and assign to variable

Question

utility.fetchInfo() returns a Promise object. I need to be able to get the value of this Promise object and assign the value of it to a variable that I can then use

Answer 1

Just do an assignment within the callback's body

utility.fetchInfo().then(result => { myVal = result; });

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Depends on the situation, for example, if there's a big piece of async logic, it may be better to extract it in a separate function:

let myVal; // undefined until myAsyncFunc is called

const myAsyncFunc = (result) => { 
   console.log(result);
   myVal = result;
   // ...
};

utility.fetchInfo().then(myAsyncFunc); // async call of myAsyncFunc