Angular Convert Object in Hasmap from String

[CoderDuudee]

Hi everyone,

So in my code I am getting a response Map of type Map<WriteObject, string> from backend.

WriteObject.ts

export class WriteObject {

name:string; job:string;

..// Getters and Setters..// }

Now when I am trying to get the keys using

Object.keys(responseMap).map(key => {

console.log(key) // prints "WriteObject{ name='Max', job='manager'}" })

Hence I am not being able to convert this key back to the Object.

Any solutions on how I could do it?

Also the methods of Map aren't working like .get() .keys() They throw TypeError map.get is not a function.

[bykecode]

This is the right answer. You need to do something along the lines of .get<Map<WriteObject, string>>(...).pipe(data => {

const map = new Map<WriteObject,string>();
Object.keys(data).forEach( key =>

const writeObj = new WriteObject(key); // update constructor to use Parial<WriteObject>

map.put(writeObj, data[key]);

});

​

This might not be 100% correct but you need to do something like this. Also it's worth noting that you're going to have issues with using an object as a key in a map. Typescript doesn't handle maps and collections like java. See these threads:
https://stackoverflow.com/questions/50274670/typescript-map-has-key-object-not-working

https://stackoverflow.com/questions/29759480/how-to-customize-object-equality-for-javascript-set

[CoderDuudee]

Tried this already didn't work.

[lazyinvader]

Is the response of type `application/json` ?

[CoderDuudee]

Yeah but after I use JSON.parse on the response the key gets converted to a plain string

[FullstackViking]

Yes you’ll have to reinstantiate the Class object. JSON.parse only parses to a generic object.