Convert a valid snake_case name (no leading, trailing or doubled underscores) to lowerCamelCase, so foo_bar becomes fooBar . An open discussion: a huge repository names its variables and functions in snake_case, and the change is too big for anyone to review by hand. How would you use your function to rename everything safely?

Snake case to camel case, then across a whole repository

GoogleCodingLast asked Apr 2026

Convert a valid snake_case name (no leading, trailing or doubled underscores) to lowerCamelCase, so foo_bar becomes fooBar.
An open discussion: a huge repository names its variables and functions in snake_case, and the change is too big for anyone to review by hand. How would you use your function to rename everything safely?

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