I need to return the boolean result of a file readAsText promise to an array filter method. The promise returns the correct value, based on the inputs. But I do not know how to get a value for the “return” function. First is the called function, followed by the array filter code segment. The ??? on …

Hi, @KioMio Please elaborate your question what exactly the problem you face in the code and what do you want as a result so, that I can help you.

Can you edit your post and show proper complete methods, as it looks like you might have to use async,await keywords for your job?

Thank you for responding. I have tried to add what you requested. Hope it helps.

Thank you for responding. I also thought that the await keyword might help, but did not know how to implement it. I added the complete method.

ok, I could help but your code looks messy. Can you indent your code?

Sorry, I have not used this editor before. I found out how to use preformatted text.

ok, you cannot use async methods in array filter as it is synchronous. Instead you could loop through each item one by one and use await keyword. Make changes as mentioned below: First, return a promise from your phraseFound method like below: phraseFound(path: string, phrase: string) { let …

Wow! That is some great programming and insight. I will try this out. Thank you.

Thank you! Your idea worked perfectly. I simplified the function as follows: async phraseFound(path: string, phrase: string) { let panelMediaFile = 'panelMedia_' + this.global.langAbbv + '.json'; // e.g. "panelMedia_en.json" let jsonStr = await this.file.readAsText(this.global.fileSyst…

How to use a promise value for an array filter method?

Appflow

vivek-23 April 26, 2019, 2:21pm 8

ok, this looks good. I will let you know in some time.

Topic		Replies	Views
The best way to merge two arrays in one array and filter this ionic-v3	8	6817	July 19, 2021
Return value from the promise ionic-v3	9	15320	April 7, 2017
Plugins and Promises: how to manage responses ionic-v3	10	1957	May 2, 2017
Filter data from http provider ionic-v3	2	1314	May 30, 2017
readAsArrayBuffer promise does not resolve Ionic Framework	6	2200	October 26, 2022

How to use a promise value for an array filter method?

Related topics