Creating associative arrays
Associative arrays are powerful constructs to use in your Bash scripting. They are very similar to 'normal' arrays, however they have a few important differences in their creation, manipulation and key properties.
Associative arrays allow you to index using words rather than numbers, which can be important for ease of inputting and accessing properties. For example, rather than accessing 'index 4' of an array about a city's information, you can access the city_population property, which is a lot clearer!
In this exercise we will practice creating and adding to an associative array. We will then access some special properties that are unique to associative arrays. Let's get started!
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Introduction to Bash Scripting
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이 예제를 이 샘플 코드를 완성하여 풀어보세요.
# Create empty associative array
declare ____ ____
# Add the key-value pairs
model_metrics[____]=____
model_metrics____=____
model_metrics____=____