For this, use dot(.) notation along with square brackets ([]).
Example
var details = { "customer": { "customerDetails": { "otherDetails": [ { "customerDetails": { "isMarried": false }, }, { "customerDetails": { "isMarried": false }, }, { "customerDetails": { "isMarried": false } } ] } } } console.log("All values are set to true="); for (var index = 0; index < details.customer.customerDetails['otherDetails'].length; index++) { details.customer.customerDetails['otherDetails'][index].customerDetails['isMarr ied'] = true; } for (var index = 0; index < details.customer.customerDetails['otherDetails'].length; index++) { console.log("isMarried:"+details.customer.customerDetails['otherDetails'][index ].customerDetails['isMarried']); }
To run the above program, you need to use the following command −
node fileName.js.
Here, my file name is demo186.js.
Output
This will produce the following output −
PS C:\Users\Amit\javascript-code> node demo186.js All values are set to true= isMarried:true isMarried:true isMarried:true