Es6-label-with-break

ES6-ブレーク付きラベル

例

outerloop://This is the label name
for (var i = 0; i < 5; i++) {
   console.log("Outerloop: " + i);
   innerloop:
   for (var j = 0; j < 5; j++){
      if (j > 3 ) break ;//Quit the innermost loop
      if (i == 2) break innerloop;//Do the same thing
      if (i == 4) break outerloop;//Quit the outer loop
      console.log("Innerloop: " + j);
   }
}

上記のコードが正常に実行されると、次の出力が表示されます。

Outerloop: 0
Innerloop: 0
Innerloop: 1
Innerloop: 2
Innerloop: 3
Outerloop: 1
Innerloop: 0
Innerloop: 1
Innerloop: 2
Innerloop: 3
Outerloop: 2
Outerloop: 3
Innerloop: 0
Innerloop: 1
Innerloop: 2
Innerloop: 3
Outerloop: 4