Why pipe not working?

Question

I have created one pipe to sort an object array based on the value of the object property.keep all Objects with property show==0 and show==1 are removed,there is no any error and can be seen in the console.

pipe.ts

@Pipe({
    name: 'menufilter'
})
@Injectable()
export class MyMenuFilterPipe implements PipeTransform {
    transform(items: any[], args: any[]): any {
        if (items) {
            return items.filter(item => item.show == '0',console.log(item));
        }
    }

app.html

<tr  *ngFor="let menu of specificmenus|menufilter" >
     <td >{{menu.name}}</td>
</tr>

Are you sure the `.show` property is a type of string, and not a number? There is a big difference between `'0'` and `0` — CozyAzure, Jul 27 '17 at 08:33
@CozyAzure Its 32 bit intiger ,im getting the same result in the console while using '0' and 0 — Ajith, Jul 27 '17 at 08:39
Could you reproduce the issue in a plunker? Based on what I'm seeing (and tried your code) it should work just fine :) — AT82, Jul 27 '17 at 09:19

score 0 · Answer 1 · answered Jul 27 '17 at 08:09

0

Because you are not returning anything

transform(items: any[], args: any[]): any {
    if (items){
      return items.filter(item =>{
        console.log(items)
        return item.show=='0';
      })
      }
    }

answered Jul 27 '17 at 08:09

Aravind

40,391
16
91
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1

if you look at his syntax properly; he did return the value. Fat arrow notations doenst require the `return` keyword if you dont have the curly braces. Though, there will be no effect of him passing in the console.log as a second argument in the callback – CozyAzure Jul 27 '17 at 08:26

score 0 · Answer 2 · answered Jul 27 '17 at 12:51

0

Remove ",console.log(item)" And retry!

answered Jul 27 '17 at 12:51

jackjoy

101
1
2

Why pipe not working?

2 Answers2