How to get Key by passing Value?

Narayan K · ‎06-06-2025

Hi there,

I have created system property with key value pair. In script I can return value by passing key but is it possible to return key by passing value?

Thanks!

Narayan K · ‎06-06-2025

Resolved:



var propertyValue = gs.getProperty('testproperty');

//{"LATAM":["Argentina", "India", "Brazil"]}

var regionMap = JSON.parse(propertyValue);



var targetCountry = 'India';



for (var region in regionMap) {

    var countries = regionMap[region];

    if (countries.indexOf(targetCountry) !== -1) {

        gs.info("country" + targetCountry + "has region " + region);

       

    }

}

View solution in original post

Anil Nemmikanti · ‎06-06-2025

Hi @Narayan K ,

Please use the system property in JSON key pair values. In that way you can get key based on value.

Nayan Dhamane · ‎06-06-2025

Hello Kindly see below script which might help you:

var propertyValue = {

"key1": "value1",

"key2": "value2",

"key3": "value3"

};

//var jsonObject = JSON.parse(propertyValue);

var searchValue = 'value2';

var foundKey = null;

for (var key in propertyValue) {

if (propertyValue[key] === searchValue) {

foundKey = key;

break;

}

if (foundKey) {

gs.info('Found key: ' + foundKey);

} else {

gs.info('Value not found');

}

If my answer solved your issue, please mark my answer as ✅Correct & Helpful based on the Impact

Best Regards,
Nayan Dhamane
ServiceNow Community Rising Star 2023.

Ankur Bawiskar · ‎06-06-2025

@Narayan K

something like this can help you get started

Ensure you use system property value but I hard-coded the json string

//var prop = gs.getProperty('my_property'); // Replace with your property name
var prop = '{"US":"United States","IN":"India","UK":"United Kingdom"}';
var obj = JSON.parse(prop);
var searchValue = 'India'; // The value you want to find the key for
var foundKey = null;

for (var key in obj) {
  if (obj[key] == searchValue) {
    foundKey = key;
    break;
  }
}

gs.info('Key for value "' + searchValue + '" is: ' + foundKey);

Output:

If my response helped please mark it correct and close the thread so that it benefits future readers.

Regards,
Ankur
✨ Certified Technical Architect || ✨ 9x ServiceNow MVP || ✨ ServiceNow Community Leader

Narayan K · ‎06-06-2025

Hi @Ankur Bawiskar ,

Thanks for the solution. I am able to get Key by using value but currently I am storing multiple values for a single key as shown below:

{"LATAM":["Argentina","India","Brazil"]}

Given code is not working for multiple country values.