get the values of nested object/array JavaScript

Question

How can I get all the values in an array of this nested object:

{
 "report": {
 "firstSection": {
 "totalIncome": 9650000,
 "category": null,
 "mustPay": null,
 "tax": null,
 "bef": null,
 "message": "Los ingresos exceden el monto máximo para la modalidad monotributo"
 },
 "secondSection": {
 "subTotals": {
 "intTotal": 6295.166666666666,
 "ordTotal": 3884679.201041667
 },
 "unitaryProductionCost": 247.55291005291008,
 "unitaryInfo": {
 "unitarySalesCost": 16338.425925925927,
 "unitarySalesPrice": 23536.585365853658
 },
 "bankDebts": 0,
 "monthlySimpleDepreciation": 173333.33333333334
 },
 }
};

Basically I want an array like this, only with the values:

{
 "report": [
 9650000,
 null,
 null,
 null,
 null,
 "Los ingresos exceden el monto máximo para la modalidad monotributo",
 6295.166666666666,
 3884679.201041667,
 247.55291005291008,
 16338.425925925927,
 23536.585365853658,
 0,
 173333.33333333334,
 ]
}

I have this repl.it if it helps https://repl.it/@lizparody/UnlinedCruelResearch Thank you!

Answer 1

This recursive method, uses Object.values() to get the current object's values. Values are iterated with Array.reduce(). If the value is an object (and not null), it's iterated with the method as well. The actual values are combined to a single array with Array.concat():

const obj = {"report":{"firstSection":{"totalIncome":9650000,"category":null,"mustPay":null,"tax":null,"bef":null,"message":"Los ingresos exceden el monto máximo para la modalidad monotributo"},"secondSection":{"subTotals":{"intTotal":6295.166666666666,"ordTotal":3884679.201041667},"unitaryProductionCost":247.55291005291008,"unitaryInfo":{"unitarySalesCost":16338.425925925927,"unitarySalesPrice":23536.585365853658},"bankDebts":0,"monthlySimpleDepreciation":173333.33333333334}}};
const getObjectValues = (obj) => 
 Object.values(obj).reduce((r, v) => 
 r.concat(v && typeof v === 'object' ? getObjectValues(v) : v)
 , []);
 
const result = getObjectValues(obj);
console.log(result);

• Md Johirul Islam: const result = {"reports": getObjectValues(obj)}; will get the result in desired format

Answer 2

Here is the working code

var data = {
 "report": {
 "firstSection": {
 "totalIncome": 9650000,
 "category": null,
 "mustPay": null,
 "tax": null,
 "bef": null,
 "message": "Los ingresos exceden el monto máximo para la modalidad monotributo"
 },
 "secondSection": {
 "subTotals": {
 "intTotal": 6295.166666666666,
 "ordTotal": 3884679.201041667
 },
 "unitaryProductionCost": 247.55291005291008,
 "unitaryInfo": {
 "unitarySalesCost": 16338.425925925927,
 "unitarySalesPrice": 23536.585365853658
 },
 "bankDebts": 0,
 "monthlySimpleDepreciation": 173333.33333333334
 },
 }
};
var ret = {"reports":[]}
function getleafs(obj) {
 for (var key in obj) {
 if (obj[key] && typeof obj[key] === "object") {
 getleafs(obj[key]); 
 } else {
 ret["reports"].push(obj[key]); 
 }
 }
}
getleafs(data);
console.log(ret);

Answer 3

Trace object by recursive function:

var obj = {
 "report": {
 "firstSection": {
 "totalIncome": 9650000,
 "category": null,
 "mustPay": null,
 "tax": null,
 "bef": null,
 "message": "Los ingresos exceden el monto máximo para la modalidad monotributo"
 },
 "secondSection": {
 "subTotals": {
 "intTotal": 6295.166666666666,
 "ordTotal": 3884679.201041667
 },
 "unitaryProductionCost": 247.55291005291008,
 "unitaryInfo": {
 "unitarySalesCost": 16338.425925925927,
 "unitarySalesPrice": 23536.585365853658
 },
 "bankDebts": 0,
 "monthlySimpleDepreciation": 173333.33333333334
 },
 }
};
function tracer(obj, arr)
{
 if ( typeof obj === 'object' )
 {
 	for( key in obj)
 {
 if ( obj[key] == null )
 {
 	arr.push(obj[key]);
 }
 else if ( typeof obj[key] === 'object' )
 {
 	arr = tracer(obj[key],arr);
 }
 else
 {
 	arr.push(obj[key]);
 }
 }
 }
	return arr;
}
var report = {report:[]};
report["report"] = tracer(obj, []);
console.log(report);

• user2437417: You're missing the null values because typeof null === "object"; // true
• Alexey Usachov: @CrazyTrain Thank you, you are right, I have fixed it in my answer.