no-unused-labels

NOTE: this rule is part of the recommended rule set.

Enable full set in deno.json:

{
  "lint": {
    "rules": {
      "tags": ["recommended"]
    }
  }
}

Enable full set using the Deno CLI:

deno lint --rules-tags=recommended

This rule can be explictly included to or excluded from the rules present in the current tag by adding it to the include or exclude array in deno.json:

{
  "lint": {
    "rules": {
      "include": ["no-unused-labels"],
      "exclude": ["no-unused-labels"]
    }
  }
}

禁止未使用的标签。

声明但从未使用的标签很可能是开发者的错误。如果该标签是打算使用的，那么请编写代码以便使用它。否则，请删除该标签。

无效：

LABEL1:
while (true) {
  console.log(42);
}

LABEL2:
for (let i = 0; i < 5; i++) {
  console.log(42);
}

LABEL3:
for (const x of xs) {
  console.log(x);
}

有效：

LABEL1:
while (true) {
  console.log(42);
  break LABEL1;
}

LABEL2:
for (let i = 0; i < 5; i++) {
  console.log(42);
  continue LABEL2;
}

for (const x of xs) {
  console.log(x);
}

no-unused-labels

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