In HTML attribute naming is in lowercase (e.g. onclick). In JSX they are:

Question

Accepted Answer

renamed to their camelCase equivalent onclick  =>  onClick onchange  =>  onChange onsubmit  =>  onSubmit

Answer

renamed to their kebab-case equivalent onclick  =>  on-click onchange  =>  on-change onsubmit  =>  on-submit

Answer

renamed to their PascalCase equivalent onclick  =>  OnClick onchange  =>  OnChange onsubmit  =>  OnSubmit

Answer

renamed to their snake_case equivalent onclick  =>  on_click onchange  =>  on_change onsubmit  =>  on_submit

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