[jira] [Created] (AMBARI-15599) Create computed macros `truncate`

["Oleg Nechiporenko (JIRA)" <ji...@apache.org>]

Oleg Nechiporenko created AMBARI-15599:
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             Summary: Create computed macros `truncate`
                 Key: AMBARI-15599
                 URL: https://issues.apache.org/jira/browse/AMBARI-15599
             Project: Ambari
          Issue Type: Task
          Components: ambari-web
    Affects Versions: 2.4.0
            Reporter: Oleg Nechiporenko
            Assignee: Oleg Nechiporenko
             Fix For: 2.4.0


A computed property that returns dependent value truncated to the `reduceTo`-size if its length is greater than `maxLength` Truncated part may be replaced with `replacer` if it's provided
{code:javascript}
var o = Em.Object.create({
     p1: Em.computed.truncate('p2', 8, 5, '###'),
     p2: 'some string',
     p3: Em.computed.truncate('p2', 8, 5)
});
console.log(o.get('p1')); // 'some ###'
console.log(o.get('p3')); // 'some ...'
o.set('p2', '123456789');
console.log(o.get('p1')); // '12345###'
console.log(o.get('p3')); // '12345...'
{code}



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