Ionic 3 Filter List












0















I'm stuck here



When I clicked the list, nothing happens and the console don't show anything. I use the search filter typescript into list filter. I'm not good in ionic especially angular js.



popular.html:



<ion-item>
<ion-select (click)="this.filterService.getYear($event)" >
<ion-option value="first">1st Year</ion-option>
<ion-option value="second">2nd Year</ion-option>
<ion-option value="third">3rd Year</ion-option>
<ion-option valur="fourth">4th Year</ion-option>
<ion-option value="fifth">5th Year</ion-option>
</ion-select>
</ion-item>


filter.ts:



getYear(searchbar, item)
{
let nav = this.app.getActiveNav();

console.log(this.posts);

this.keyboard.close();

this.initializeItems();

var q = searchbar.srcElement.value;
if (!q) {
return;
}

this.filters = this.posts.filter((value) => {

console.log(value);

if (value.data().year && q) {
if (value.data().year.toLowerCase().indexOf(q.toLowerCase()) > -1) {
return true;
}
return false;
}
});
}









share|improve this question





























    0















    I'm stuck here



    When I clicked the list, nothing happens and the console don't show anything. I use the search filter typescript into list filter. I'm not good in ionic especially angular js.



    popular.html:



    <ion-item>
    <ion-select (click)="this.filterService.getYear($event)" >
    <ion-option value="first">1st Year</ion-option>
    <ion-option value="second">2nd Year</ion-option>
    <ion-option value="third">3rd Year</ion-option>
    <ion-option valur="fourth">4th Year</ion-option>
    <ion-option value="fifth">5th Year</ion-option>
    </ion-select>
    </ion-item>


    filter.ts:



    getYear(searchbar, item)
    {
    let nav = this.app.getActiveNav();

    console.log(this.posts);

    this.keyboard.close();

    this.initializeItems();

    var q = searchbar.srcElement.value;
    if (!q) {
    return;
    }

    this.filters = this.posts.filter((value) => {

    console.log(value);

    if (value.data().year && q) {
    if (value.data().year.toLowerCase().indexOf(q.toLowerCase()) > -1) {
    return true;
    }
    return false;
    }
    });
    }









    share|improve this question



























      0












      0








      0








      I'm stuck here



      When I clicked the list, nothing happens and the console don't show anything. I use the search filter typescript into list filter. I'm not good in ionic especially angular js.



      popular.html:



      <ion-item>
      <ion-select (click)="this.filterService.getYear($event)" >
      <ion-option value="first">1st Year</ion-option>
      <ion-option value="second">2nd Year</ion-option>
      <ion-option value="third">3rd Year</ion-option>
      <ion-option valur="fourth">4th Year</ion-option>
      <ion-option value="fifth">5th Year</ion-option>
      </ion-select>
      </ion-item>


      filter.ts:



      getYear(searchbar, item)
      {
      let nav = this.app.getActiveNav();

      console.log(this.posts);

      this.keyboard.close();

      this.initializeItems();

      var q = searchbar.srcElement.value;
      if (!q) {
      return;
      }

      this.filters = this.posts.filter((value) => {

      console.log(value);

      if (value.data().year && q) {
      if (value.data().year.toLowerCase().indexOf(q.toLowerCase()) > -1) {
      return true;
      }
      return false;
      }
      });
      }









      share|improve this question
















      I'm stuck here



      When I clicked the list, nothing happens and the console don't show anything. I use the search filter typescript into list filter. I'm not good in ionic especially angular js.



      popular.html:



      <ion-item>
      <ion-select (click)="this.filterService.getYear($event)" >
      <ion-option value="first">1st Year</ion-option>
      <ion-option value="second">2nd Year</ion-option>
      <ion-option value="third">3rd Year</ion-option>
      <ion-option valur="fourth">4th Year</ion-option>
      <ion-option value="fifth">5th Year</ion-option>
      </ion-select>
      </ion-item>


      filter.ts:



      getYear(searchbar, item)
      {
      let nav = this.app.getActiveNav();

      console.log(this.posts);

      this.keyboard.close();

      this.initializeItems();

      var q = searchbar.srcElement.value;
      if (!q) {
      return;
      }

      this.filters = this.posts.filter((value) => {

      console.log(value);

      if (value.data().year && q) {
      if (value.data().year.toLowerCase().indexOf(q.toLowerCase()) > -1) {
      return true;
      }
      return false;
      }
      });
      }






      typescript ionic3






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 23 '18 at 13:41









      AS Mackay

      2,01351121




      2,01351121










      asked Nov 23 '18 at 11:03









      D.BacarisasD.Bacarisas

      32




      32
























          2 Answers
          2






          active

          oldest

          votes


















          0














          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>





          share|improve this answer
























          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34



















          0














          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview






          share|improve this answer
























          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33












          Your Answer






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          2 Answers
          2






          active

          oldest

          votes








          2 Answers
          2






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          0














          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>





          share|improve this answer
























          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34
















          0














          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>





          share|improve this answer
























          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34














          0












          0








          0







          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>





          share|improve this answer













          I think you need to use the ngModel data binding for this, as described in the documentation



          <ion-item>
          <ion-label>Gender</ion-label>
          <ion-select [(ngModel)]="gender">
          <ion-option value="f">Female</ion-option>
          <ion-option value="m">Male</ion-option>
          </ion-select>
          </ion-item>


          For your example, this would change to



          <ion-select [(ngModel)]=“filterService.getYear($event)”>






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 24 '18 at 18:20









          JoshJosh

          161




          161













          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34



















          • [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

            – D.Bacarisas
            Nov 25 '18 at 7:47











          • I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

            – D.Bacarisas
            Nov 25 '18 at 8:34

















          [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

          – D.Bacarisas
          Nov 25 '18 at 7:47





          [Angular] Parser Error: Unexpected token '=' at column 16 in [getYear($event)=$event]

          – D.Bacarisas
          Nov 25 '18 at 7:47













          I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

          – D.Bacarisas
          Nov 25 '18 at 8:34





          I got it. I used this: <ion-select [(ngModel)]="year" (ionChange)="this.filterService.getItems(year)">

          – D.Bacarisas
          Nov 25 '18 at 8:34













          0














          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview






          share|improve this answer
























          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33
















          0














          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview






          share|improve this answer
























          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33














          0












          0








          0







          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview






          share|improve this answer













          You should be using (ionChange) instead of (click), like



          <ion-select (ionChange)="getYear($event)">


          Or probably filterService.getYear($event) in your case, although I am not a big fan of accessing services from the template.



          The getYear function will be called with the value of selected item, ie, "first", "second" etc, and hence should ideally have a single argument, instead of 2.



          Example Code/Preview







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 23 '18 at 12:40









          rjvrjv

          3,23012045




          3,23012045













          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33



















          • Thanks, but I think that this typescript of search filter is not applicable to the list filter.

            – D.Bacarisas
            Nov 23 '18 at 13:33

















          Thanks, but I think that this typescript of search filter is not applicable to the list filter.

          – D.Bacarisas
          Nov 23 '18 at 13:33





          Thanks, but I think that this typescript of search filter is not applicable to the list filter.

          – D.Bacarisas
          Nov 23 '18 at 13:33


















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