Q:

Ruby program to get key based on value from the hash collection

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YasminRadwan26
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2022-07-23
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In this program, we will create a hash collection. Then we will get the key based on the specified value using the key() method.

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YasminRadwan26
2022-07-23
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Program/Source Code:

The source code to get key based on value from the hash collection is given below. The given program is compiled and executed on Windows 10 Operating System successfully.

# Ruby program to get key based on value
# from hash collection

student = {"101" => "Amit", "102" => "Arun", "103" => "Sumit"};

key = student.key("Amit");

print "Key: ",key;

Output:

Key: 101

Explanation:

In the above program, we created a hash collection to store student information. Then we get the key based on the specified value using the key() method and printed the returned key. It returns nil if no matching value is found.

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