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条件分岐

Last updated at Posted at 2021-04-03

if文

if (条件式){
処理内容1 //条件式を満たす場合にのみ実行する
}
else{
処理内容2 //条件式を満たさない場合にのみ実行される
}
const score = 70;
if (60 > score ){
    console.log ("不合格");
} else if (60 <= score && score < 80){
    console.log ("おしい!");
} else if (80 <= score){
    console.log("合格");
}

論理演算子

  • && …かつ
  • || …または
  • ! …〜でない(否定)
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