How to take the data in typescript from json object?

Ionic Framework ionic-v3
1

Friends,
When I alert using statement

alert(JSON.stringify(this.param1));

I got result as

[{"numBuildingID":"30172010000829","numZonalID":"3017201","intWardYearID":"2013","wardname":"( 1 ) വിളക്കുളം","intDoorNO":"90","chvownerEng":"Beevi Pathumma","chvAssessEng":"ARV","ptaxold":"130","lcold":"7","surold1":"0","servold":"0","ptaxtotalold":"137","area":"64","chvFunctionalityMal":"പാര്‍പ്പിടാവശ്യം","chvStatusEng":"Approved","form6status":"Approved","ptaxnew":"130","lcnew":"7","sernew":"13","surnew":"0","ptaxtotalnew":"150","wardnameeng":"( 1 ) VILAKULAM","chvOfficeNameEng":"Main Office","intWardNo":"1","chvRemarksForm6":"--","isDemolished":"0","intDemolishedPeriod":"0","chvCategoryEng":"Authorised","intLBID":"172","Column1":"Varkala Muncipality","intBuildingCategory":"1","Column2":"1. Beevi Pathumma ()","chvWardNameEng":"VILAKULAM","bitIsCurrent":"1"}]

From this i need to take the value of ‘numBuildingID’,‘intBuildingCategory’ in two variables.

How it can done ?

Please advise

Thanks

2

Just get the variables from this.param1

let numBuildingID = this.param1.numBuildingID;
let intBuildingCategory = this.param1.intBuildingCategory;
3

Dear @MattE

I got that values as ‘undefined’ now.
Actually that values passed as JSON.parse (i mean object)…
please advise

4

Can you show to code you use for this?
Most likely you made an error there (maybe a typo)

5 
payTax(){

  alert(JSON.stringify(this.param1));
  let numBuildingID = this.param1.numBuildingID;
  let intBuildingCategory = this.param1.intBuildingCategory;
  alert("id is: "+numBuildingID); //undefined here 
  
}

No comments ?

6

What’s the output when you add this line to the top of payTax()?

console.log(this.param1);
and
console.log(this.param1.numBuildingID);

7

Ow wait, I know!

this.param1 is an array, not an object.

this.param1[0].numBuildingID will work.

8

Thanks dear you saved me …

:sunglasses:

9

Great!
Now mark the thread as solved, so other people see this thread has a solution.