$camelcase

Update records by converting a string column to camel case format. The $camelcase method is used to modify text fields by transforming the value into camel case, where the first word is lowercase and subsequent words are capitalized (e.g., “helloWorld”). This is useful for formatting strings that need to follow camel case conventions, commonly used in programming for variable names.

await Member.$update({
    $where: { 
        age: { 
            $eq: 16 
        } 
    },
    $update: {
       $camelcase: {
         username: true
       }
    }
});