Placing array in an object

[AbineshM]

HI 

var chr = [{"Discount5":"10","FeatureToken":"[{'tokenId': 'test', 'tokenOccurence': '1','tokenValue': 11111111}, {'tokenId': 'RCY', 'tokenOccurence': '1','tokenValue': 3}]"}];

var f = chr[0].FeatureToken;
gs.info("speed" + f);

var d = {"feature": +f};
gs.info("speed" + JSON.stringify(d));

for the above code i am getting the following results,

Why am i getting a null value for variable d, Can anyone help me with this? 
need to place the array against feature.

[Nishant12 · Accepted solution]

You just have to remove + in your  variable d assignment  var d = {"feature": +f};

try below 
var chr = [{"Discount5":"10","FeatureToken":"[{'tokenId': 'test', 'tokenOccurence': '1','tokenValue': 11111111}, {'tokenId': 'RCY', 'tokenOccurence': '1','tokenValue': 3}]"}];

var f = chr[0].FeatureToken;
gs.info("speed" + f);

var d = {"feature": f};
gs.info("speed" + JSON.stringify(d));

[Nishant12 · Accepted solution]

You just have to remove + in your  variable d assignment  var d = {"feature": +f};

try below 
var chr = [{"Discount5":"10","FeatureToken":"[{'tokenId': 'test', 'tokenOccurence': '1','tokenValue': 11111111}, {'tokenId': 'RCY', 'tokenOccurence': '1','tokenValue': 3}]"}];

var f = chr[0].FeatureToken;
gs.info("speed" + f);

var d = {"feature": f};
gs.info("speed" + JSON.stringify(d));

[Sandeep Rajput · Accepted solution]

@AbineshM Please update your script as follow.

var chr = [{"Discount5":"10","FeatureToken":"[{'tokenId': 'test', 'tokenOccurence': '1','tokenValue': 11111111}, {'tokenId': 'RCY', 'tokenOccurence': '1','tokenValue': 3}]"}];


var f = chr[0].FeatureToken;
gs.info("speed" + f);


var d = {"feature": f};
gs.info("speed" + JSON.stringify(d));

Now you should be able to stringify the value if d.