Array.any Example

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  testArrayAny: Ember.computed(function() {
    let emptyArray = Ember.A();
    let singleValuedArray = Ember.A([true]);
    let specialArray = Ember.A([null, undefined, NaN]);
    let normalArray = Ember.A([0,1,2,3]);

    let cases = [{
  	  name: 'true if even; false otherwise',
      f: x => x % 2 === 0
    }, {
  	  name: '1 if even; 0 otherwise',
      f: x => x % 2 === 0
    }, {
  	  name: 'true if odd; false otherwise',
      f: x => x % 2 === 1
    }, {
  	  name: '1 if odd; 0 otherwise',
      f: x => (x % 2 === 1) ? 1 : 0
    }, {
  	  name: 'Always true',
      f: x => true
    }, {
  	  name: 'Always false',
      f: x => false
    }, {
  	  name: 'Always null (falsey)',
      f: x => null
    }, {
  	  name: 'Always 0 (falsey)',
      f: x => 0
    }, {
  	  name: 'Always 1 (truthy)',
      f: x => 1
    }, {
  	  name: 'Identity',
      f: x => x
    }];
    
    return cases.map(({name, f}) => {
    	return {
      	name: name,
        empty: emptyArray.any(f),
        single: singleValuedArray.any(f),
        special: specialArray.any(f),
        normal: normalArray.any(f)
      };
    });
  })
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

table {
	width: 100%;
}

th {
	text-align: left;
}

templates.application.hbs

<table>
<thead>
	<tr>
  <th>f returns...</th><th>[].any(f)</th>
  <th>[true].any(f)</th>
  <th>[null, undefined, NaN].any(f)</th>
  <th>[0,1,2,3].any(f)</th>
  </tr>
</thead>
<tbody>
{{#each testArrayAny as |result|}}
	<tr>
  <td>{{result.name}}</td>
  <td>{{result.empty}}</td>
  <td>{{result.single}}</td>
  <td>{{result.special}}</td>
  <td>{{result.normal}}</td>
  </tr>
{{/each}}
</tbody></table>
<br>
<br>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}