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数値と文字列の不等式

Last updated at Posted at 2023-12-07

不等式

シンプルな事ですが、
数値の不等式と文字列不等式は結果が異なります。
当たり前のように聞こえますが、
基準が異なるために起こります。

数値の場合は数値同士の差分による結果
文字列の場合はUnicodeに沿ったポイントの差(unicode上の並び順というイメージ)

数値
9<10 結果 true

文字列
"9" < "10" 結果 false

これは9より1の方がunicodeのポイントが小さい為。
※さらに細かい理由は分かったら追記します。

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