For example: if I have a list of records, like this:
[
{
'id' : 1,
'name' : 'Renato'
},
{
'id' : 2,
'name' : 'John'
}
]
and I want to get a list of id.
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Renato Oliveira
- 456
- 2
- 7
- 21
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A [map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map) works perfectly here: `arr.map(item => item.id);` As @mhodges said, check out the suggested existing question. – nem035 May 15 '17 at 17:44
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'var map = Array.prototype.map;' then `rec.map(function(currentValue,index,array){return currentValue.id})` – Bill Bell May 15 '17 at 18:13