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Here is what I try to convert:
[{"id":4,"name":"Group4"},{"id":6,"name":"Group6"}]
So I want to convert it into single JavaScript array like:
[4,6]
arr = arr.map(function(el){ return el.id; });
Use map: inputArray.map(function (element) { return element.id; });
map
inputArray.map(function (element) { return element.id; });
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arr = arr.map(function(el){ return el.id; });