Send string[] data to api Angular 4

Question

I want send property model, example i already selected data from table have a model JSON array { a: string, b: object, c:string} but i want to send only property c.

this is my function

public onApprove(mf) {
     if (mf === null || mf.undefined) return;
     if (!this.btnControl) { return; }

     this.btnControl = false;
     let data: Array<string> = [];
     const approvalLeader = new ApprovalL1Model();
     data = mf.data.filter(f => f.isSelector == true);
     data.push(approvalLeader.groupId);

     this.approvalLeaderService.approve(data)
         .subscribe(
             s => {
             },
             e => {
                 this.btnControl = true;
                 this.alertService.error(e.status, e.statusText, e._body);
             });
     this.getData();
     console.log(data);
     this.btnControl = true;
     this.alertService.success('Booking Approved');
}

I already try but my data.push value was undefined, any solution?

cant you simply loop it & pickup c pass it on server by storing in a new array(temp) — super cool
– super cool, Commented Jan 7, 2019 at 7:33

Vinko Vorih · Accepted Answer · 2019-01-07 07:36:26Z

1

using rxjs map operator you can acquire that. First of all, collect your object property, after it send it to api. e.g.:

   let array = data.map(object => {return object.c});

answered Jan 7, 2019 at 7:36

Vinko Vorih

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8 Comments

T M Over a year ago

i have a model approvalL1model how to include the model to data.map()?

Vinko Vorih Over a year ago

can i see declaration of approvalModel?

T M Over a year ago

groupId: string; dtoBooking: bookingmodel[];

Vinko Vorih Over a year ago

i mean. this will return undefined your code. because you didn't initialize your object. if you need just groupId you can acquire it with approvalLeader['groupId']

T M Over a year ago

let array = data.map(f => { return approvalLeader['groupID']} ); like this?

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