I have this array, where ‘data_type’ holds values in a comma separated string:
Original array:
var getGroups = [ { id: 52, data_type: "Prices & Volumes,Holdings,Reference Data" }, { id: 51, data_type: "Prices & Volumes,Holdings,Reference Data" }, { id: 49, data_type: "Fundamentals,Holdings,Corporate Actions,Reference Data" }, { id: 25, data_type: "Holdings,Corporate Actions,Reference Data" } ]
How to catch, filter and build new array with all unique values?
Target array:
var targetArray = [ "Prices & Volumes", "Holdings", "Reference Data", "Fundamentals", "Corporate Actions" ] console.log('targetArray:'); console.log(targetArray); ["Prices & Volumes", "Holdings", "Reference Data", "Fundamentals", "Corporate Actions"]
Here is a Fiddle: https://jsfiddle.net/grnewkzs/1/
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Answer
const getGroups = [ { id: 52, data_type: "Prices & Volumes,Holdings,Reference Data" }, { id: 51, data_type: "Prices & Volumes,Holdings,Reference Data" }, { id: 49, data_type: "Fundamentals,Holdings,Corporate Actions,Reference Data" }, { id: 25, data_type: "Holdings,Corporate Actions,Reference Data" } ]; const values = getGroups.map(item => item.data_type.split(',')) const sets = new Set([].concat(...values)) const array = Array.from(sets)
you need to know why and how, or your lean nothing…that’s bad.