filter object by key and its items
22,546
Array#filter
is expecting a boolean value as return value, you might use this
let myKeys = Object.keys(data).filter(key => key == vm.system_id);
for getting the keys and then render a new object with the given keys.
To get all items in a single array, you could collect them with
let result = myKeys.reduce((r, k) => r.concat(data[k]), []);
Author by
hauge
Updated on August 23, 2020Comments
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hauge over 3 years
I have an object that I would like to filter it's keys..
Im trying to filter the object by an ID, like so:
let myKeys = Object.keys(data).filter(function(key) { //console.log(data[key]); if(parseInt(key) === parseInt(vm.system_id)) { return data[key]; } }); console.log(myKeys);
This works, partialy - im getting the key, however, im not getting all the data/items under this item im filtering out
The object im filtering is one similar to this one:
{ "646": [{ "id": 52144, "timestamp": "2017-08-17T14:10:23Z", "type": "alarm", "code": 210, "title": "", "description": "", "remedy": "", "appeared": "2017-08-17T14:10:09Z", "disappeared": null, "acknowlegded": null, "solved": null, "system_name": "CG-MX19D7K5C1", "system_id": 646, "system_device_id": 458, "stream": "cu351.alarm_code" } ], "693": [{ "id": 51675, "timestamp": "2017-08-16T13:59:55Z", "type": "alarm", "code": 215, "title": "", "description": "", "remedy": "", "appeared": "2017-08-16T13:59:57Z", "disappeared": null, "acknowlegded": null, "solved": null, "system_name": "Demo 07122016", "system_id": 693, "system_device_id": 371, "stream": "cu351.alarm_code" }, { "id": 51677, "timestamp": "2017-08-16T13:59:57Z", "type": "alarm", "code": 214, "title": "", "description": "", "remedy": "", "appeared": "2017-08-16T13:59:59Z", "disappeared": null, "acknowlegded": null, "solved": null, "system_name": "Demo 07122016", "system_id": 693, "system_device_id": 371, "stream": "cu351.alarm_code" } ]
}
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hauge over 6 yearsNot quite, this still just returns an array with the key ['693'] - But not giving me all the data under this item
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Nina Scholz over 6 yearsright, you need another loop please add an example and what you expect.