[Solved] In your ~/.irbrc file, you set:IRB.conf[:SAVE_HISTORY] = "500"Why might IRB fail to save the command history as expected? | Ruby

Ruby - Ecosystem and Best Practices

In your ~/.irbrc file, you set:

IRB.conf[:SAVE_HISTORY] = "500"

Why might IRB fail to save the command history as expected?

ABecause the history file path is missing

BBecause the key :SAVE_HISTORY is deprecated

CBecause the value should be an integer, not a string

DBecause IRB requires a boolean value for :SAVE_HISTORY

Step-by-Step Solution

Solution:

Step 1: Identify the data type issue
The value assigned to IRB.conf[:SAVE_HISTORY] is a string "500" instead of an integer.
Step 2: Understand IRB's expectation
IRB expects an integer to specify how many commands to save in history.
Final Answer:
Because the value should be an integer, not a string -> Option C
Quick Check:
Check the data type of the value assigned [OK]

Quick Trick: Use integers for numeric IRB config values [OK]

Common Mistakes:

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