課題
06.function/returnValue.html
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<!DOCTYPE html> <html lang="ja"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="initial-scale=1.0"> <title>戻り値</title> <script> function addition(var1, var2){ var1 + var2; } </script> </head> <body> <h1 id="title">戻り値</h1> <script> var num1 = 5; var num2 = 6; var num3; document.write(num3); </script> </body> </html>