12:["$","div","7617",{"className":"Post-module__aBOVGG__post","style":{"display":"flex","flexDirection":"column","alignItems":"center","gap":"8px","flex":"1","width":"calc(100% - 4vw)","padding":"12px","maxWidth":"920px"},"children":[["$","div",null,{"className":"$undefined","style":{"display":"flex","gap":"0.4rem","flexWrap":"wrap","width":"100%"},"children":[false,[["$","a","1022",{"href":"/1022","className":"Post-module__aBOVGG__fg","style":{},"children":"Rust"}],["$","a","202D",{"href":"/202D","className":"Post-module__aBOVGG__fg","style":{},"children":"?演算子"}]]]}],["$","article",null,{"className":"article","children":[["$","div",null,{"className":"$undefined","style":{"display":"flex","justifyContent":"space-between","flexWrap":"wrap","width":"100%"},"children":[["$","h2",null,{"style":{"margin":"0.2rem"},"children":["$","a",null,{"href":"/7617","children":"あれ"}]}],["$","div",null,{"className":"$undefined","style":{"display":"flex","justifyContent":"end","alignItems":"center","flex":"1","textAlign":"right","whiteSpace":"nowrap"},"children":["$","div",null,{"children":"2022/2/23 22:35:00"}]}]]}],["$","div",null,{"className":"article_body","dangerouslySetInnerHTML":{"__html":"

?演算子は呼び出し元が処理できるように、現在の関数からエラー値を返します。\n
── https://doc.rust-jp.rs/book-ja/ch12-03-improving-error-handling-and-modularity.html#run関数からエラーを返す

"}}]]}],["$","div",null,{"className":"$undefined","style":{"display":"flex","gap":"0.4rem","flexWrap":"wrap","width":"100%"},"children":[["$","a","",{"href":"/","className":"Post-module__aBOVGG__bg","style":{"opacity":0},"children":"あれ"}],[]]}]]}]

?演算子

あれ

?

Result