Checking if Properties Path Exists

The properties_exist function in the Jsify library is a utility designed to check if a series of properties exist within a JSON-like object (Object). This function is particularly useful for validating the presence of nested properties in complex data structures, ensuring that your code can safely access deeply nested data without encountering errors.

The properties_exist function is a valuable tool for validating the presence of properties in JSON-like data structures, particularly when working with deeply nested objects. By using this function, you can avoid errors that might arise from accessing non-existent properties, making your code more reliable and easier to maintain. This utility is especially useful in scenarios where data structures are dynamic or partially defined, providing a simple and effective way to ensure the integrity of your data access patterns.

Usage of properties_exist

The properties_exist function allows you to verify the existence of a sequence of nested properties within a Object. If all the properties in the given path exist, the function returns True; otherwise, it returns False.

Example:

from jsify import jsify, properties_exist

# Example JSON-like data
data = {
    'user': {
        'name': 'Alice',
        'details': {
            'age': 30,
            'address': {
                'city': 'Wonderland',
                'zipcode': '12345'
            }
        }
    }
}

# Convert to a jsified object
json_obj = jsify(data)

# Check if a series of properties exist
result = properties_exist(json_obj, 'user', 'details', 'address', 'city')
print(result)  # Outputs: True

# Check for a non-existent property
result = properties_exist(json_obj, 'user', 'details', 'address', 'country')
print(result)  # Outputs: False

Using the Result of properties_exist

The result of the properties_exist function can be directly used in conditional statements to make your code more robust, especially when dealing with optional or dynamically structured data.

Example:

exists = properties_exist(json_obj, 'user', 'details', 'address', 'city')
if exists:
    # The result contains both jsified and unjsified value of target element
    # if the element exists
    print(f"User's city unjsified: {exists.unjsified}")
    print(f"User's city jsified: {exists.jsified}")
else:
    print("City information is not available.")