In a promise, I wanna assign a value to the poroperty of an several objects created from a class (in a loop), but when executing the function and doing the .then(()=>console.log(r)) thing, the r does was not modified to what the promise promised me it would.
Here:
function assignSentenceImageDescription () {
return new Promise((resolve, reject) =>
{
assigningWordsPartOFSpeech().then((r) => {
JSON.parse(r).sentences.forEach((sentence) => {
let adjectiveBeforeNoun = [];
let sentenceImageDescription = [];
sentence.words.forEach((wordInSentence) => {
try {
if (wordInSentence.partOfSpeech[0].wordtype === "n.") {
let imageDescription = adjectiveBeforeNoun.join('') + wordInSentence.partOfSpeech[0].word;
sentenceImageDescription.push(imageDescription)
adjectiveBeforeNoun = [];
} else if (wordInSentence.partOfSpeech[0].wordtype === "superl.") {
adjectiveBeforeNoun.push(wordInSentence.partOfSpeech[0].word + " ")
}
} catch (e) {
console.log("===NOT IN DICTIONARY===")
}
})
sentence.imageDescription = sentenceImageDescription;
}
)
resolve(r);
}
);
}
);
}
On the line where it says sentence.imageDescription = sentenceImageDescription; I try to assign the image description of ech of the sentences iterrated through, but when I do assignSentenceImageDescription().then(r => console.log(r)); the r object still does not have each of its sentences's imageDescription property modified to the value the array sentenceImageDescription has, which is what the assignSentenceImageDescription() function is intended to do.
Refactor your code as follows:
Note: you don't need a Promise constructor since assigningWordsPartOFSpeech returns a Promise that you can work with (and return)
Set sentences = JSON.parse(r).sentences;
Now you can iterate through sentences as you already do, then simply return sentences in the .then - and you're done
function assignSentenceImageDescription() {
return assigningWordsPartOFSpeech().then((r) => {
const data = JSON.parse(r);
data.sentences.forEach((sentence) => {
let adjectiveBeforeNoun = [];
let sentenceImageDescription = [];
sentence.words.forEach((wordInSentence) => {
try {
if (wordInSentence.partOfSpeech[0].wordtype === "n.") {
let imageDescription = adjectiveBeforeNoun.join('') + wordInSentence.partOfSpeech[0].word;
sentenceImageDescription.push(imageDescription)
adjectiveBeforeNoun = [];
} else if (wordInSentence.partOfSpeech[0].wordtype === "superl.") {
adjectiveBeforeNoun.push(wordInSentence.partOfSpeech[0].word + " ")
}
} catch (e) {
console.log("===NOT IN DICTIONARY===")
}
})
sentence.imageDescription = sentenceImageDescription;
});
return data;
});
}