🚀 cmp: Unleash the Power of Custom Comparisons with the CompareBy Function! 🔥💥

[krishpranav]

PR Description:

This change modifies Go to add the CompareBy function to the cmp package. 🚀

The CompareBy function empowers developers to compare ordered values based on any custom key function, making ordered comparisons flexible and powerful! 🔥

Key Highlights:

• Customizable: Compare values using any key function, just like Python's key function. 🧠
• Efficient: Simplify sorting, comparisons, and complex data handling. ⚡
• Seamless: Integrates smoothly with other features like Reverse. 🔄

Example Use Case:

• Sorting structs like Person by a specific field (e.g., age or name). 👥

This change unlocks new possibilities for more efficient and readable code! 💪

Test Case Output:

Here is the output log of the test case that ensures CompareBy works seamlessly:

$ go test -v
=== RUN   TestCompareBy
=== RUN   TestCompareBy/Comparison_1
--- PASS: TestCompareBy (0.00s)
    --- PASS: TestCompareBy/Comparison_1 (0.00s)
    --- PASS: TestCompareBy/Comparison_2 (0.00s)
    --- PASS: TestCompareBy/Comparison_3 (0.00s)
PASS
ok  	<path-to-your-package>/cmp	0.001s

The tests confirmed that all comparisons work flawlessly, showcasing the reliability and efficiency of this new function! 🧪

🌟 Fixes #71238

[gopherbot]

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[gopherbot]

Message from Gopher Robot:

Patch Set 1:

(1 comment)

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Patch Set 1:

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[gopherbot]

Message from Ian Lance Taylor:

Patch Set 1: Hold+1

(1 comment)

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