Last Updated
：2025/12/04
Elvis operator
Noun
informal
Japanese Meaning
（プログラミングの文脈で使用される用語）第一オペランドが真（または真と評価される値）の場合、その値を返し、そうでない場合は第二オペランドを評価してその結果を返す二項演算子。
（ plural ）
Quizzes for review
(programming, informal) A binary operator that returns its first operand if that operand evaluates to true, and otherwise evaluates and returns its second operand.
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Elvis operator
When checking user input, I often use the Elvis operator to provide a default value if the input is falsy.
See correct answer
When checking user input, I often use the Elvis operator to provide a default value if the input is falsy.
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