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Access dom-repeat inside a dom-if from javascript

Asked By: Anonymous

Is it possible to access a dom-repeat that is present inside a dom-if from JavaScript?

<template is="dom-if" if={{someCondition}}>
  <template is="dom-repeat" items={{data}}></template>
</template>

I can access the dom-if using this.$.id, but how can I access the dom-repeat?


Solution

Answered By: Anonymous

You have to use the this.$$(selector) function of the DOM API. As per the docs

$$ returns the first node in the local DOM that matches selector.

_x000D_

_x000D_

Polymer({_x000D_
  is: 'my-elem',_x000D_
  _x000D_
  accessSelector: function() {_x000D_
    alert(this.$$('div').textContent);_x000D_
  }_x000D_
});

_x000D_

<!DOCTYPE html>_x000D_
<html>_x000D_
<head>_x000D_
  <base href="https://polygit.org/components/">_x000D_
  <a href="http://webcomponentsjs/webcomponents-lite.min.js">http://webcomponentsjs/webcomponents-lite.min.js</a>_x000D_
  <link href="polymer/polymer.html" rel="import"/>_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
  <my-elem></my-elem>_x000D_
  _x000D_
  <dom-module id="my-elem">_x000D_
    <template>_x000D_
      <template is="dom-if" if="true">_x000D_
        <template is="dom-repeat" items='[ 1, 2, 3 ]'>_x000D_
          <div>Item: {{item}}</div>_x000D_
        </template>_x000D_
      </template>_x000D_
      _x000D_
      <button on-tap="accessSelector">Selector</button>_x000D_
    </template>_x000D_
  </dom-module>_x000D_
_x000D_
</body>_x000D_
</html>

_x000D_

_x000D_

x000D

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