Source: Removing elements from an array of objects based on duplicate values of multiple keys
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var arr = [ { type_id: "3", full_empty:"true", quantity:1}, { type_id: "3", full_empty:"true", quantity:1}, { type_id: "9", full_empty:"true", quantity:4}, { type_id: "9", full_empty:"false", quantity:4}, { type_id: "9", full_empty:"true", quantity:4}, { type_id: "9", full_empty:"true", quantity:4}, { type_id: "9", full_empty:"true", quantity:4} ]; var a = arr.reduce(function (accumulator, current) { if (checkIfAlreadyExist(current)) { return accumulator } else { return accumulator.concat([current]); } function checkIfAlreadyExist(currentVal) { return accumulator.some(function(item){ return (item.type_id === currentVal.type_id && item.full_empty === currentVal.full_empty); }); } }, []); console.log(a); |