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What is the canonical way to create a resolved promise in ES 2015?
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This function is a promise and is called by an execute function. If execute is called twice, the second must wait the initialization then continue the execution. I wrote this code, but the second call of execute is always waiting and doesn't never return.
resolve() method in JS returns a Promise object that is resolved with a given value. Any of the three things can happened: If the value is a promise then promise is returned. If the value has a “then” attached to the promise, then the returned promise will follow that “then” to till the final state.
The Promise. resolve() method "resolves" a given value to a Promise . If the value is a promise, that promise is returned; if the value is a thenable, Promise. resolve() will call the then() method with two callbacks it prepared; otherwise the returned promise will be fulfilled with the value.
all() The Promise. all() method takes an iterable of promises as an input, and returns a single Promise that resolves to an array of the results of the input promises. This returned promise will fulfill when all of the input's promises have fulfilled, or if the input iterable contains no promises.
The Promise.resolve class method returns a promise that is instantiated as resolved with a value you can specify:
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