how to change an array element in mongodb code example

Example 1: mongodb replace item in array

db.movies.updateMany(
    { "languages": "French" }, 
    { "$set": { "languages.$": "Francais" } }
)

Example 2: how to change array value mongodb

db.getCollection('profilesservices').updateOne({_id: ObjectId("603ce3bf9323e811c86cb7c8")}, {
 $set: {"jobPreferences.jobInterests.1": "backend developer"}    
})

## sample database
{
    "_id" : ObjectId("603ce3bf9323e811c86cb7c8"),
    "jobPreferences" : {
        "jobId" : "3c7d3c4c-756b-490f-b6ab-9c0992b120b3",
        "jobInterests" : [ 
            "frontend developer", 
            "devOps"
        ],
        "workTypes" : [ 
            "full-time", 
            "part-time", 
            "magang", 
            "freelance"
        ],
        "salaryExpectation" : 4500000,
        "workCityPreferences" : [ 
            "bandung", 
            "jakarta", 
            "bali"
        ]
    },