[Total Newbie] getting dataset value

[Yvon Thoraval]

in my template,i have :

<li data-_id="{{category._id}" on-click="{{selectCategory}}">...

in js :

Polymer('my-categories', {

  ready: function() {

    this.categories = [

      {_id: 1, name: 'Abonnements'}

      , {_id: 2, name: 'Clés de logiciels'}

      , {_id: 3, name: 'Formulaires'}

      , {_id: 4, name: 'Groupes de nouvelles'}

      , {_id: 5, name: 'Références'}

    ];

  },     

  selectCategory: function(e) {

    this.selectedCategoryId = e.target.dataset._id;

    console.log("this.selectedCategoryId = " + this.selectedCategoryId);

    // => this.selectedCategoryId = {{category._id}

  }

});

when i click to one element i get :

this.selectedCategoryId = {{category._id}

insted of a number in 1..5, why?

[Rob Dodson]

You're missing a curly brace in your binding:

<li data-_id="{{category._id}" on-click="{{selectCategory}}">...

should be

<li data-_id="{{category._id}}" on-click="{{selectCategory}}">...

here's a working example: http://jsbin.com/gexoxi/3/edit

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[Yvon Thoraval]

Fine, tanx, i didn't catch that "}"...

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Yvon@48.871651804,2.384858688