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features/element_access/default_value/index.md
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## Overview
In many situations, such as configuration files, missing values are not exceptional, but may be treated as if a default value was present. For this case, use [`value(key, default_value)`](https://json.nlohmann.me/api/basic_json/value/index.md) which takes the key you want to access and a default value in case there is no value stored with that key.
In many situations, such as configuration files, missing values are not exceptional, but may be treated as if a default value was present. For this case, use [`value(key, default_value)`](https://json.nlohmann.me/api/basic_json/value/index.md) which takes the key you want to access and a default value in case there is no value stored with that key. This is equivalent to Python's `dict.get(key, default)`.
## Example