varsIgnorePattern

varsIgnorePattern 选项指定不检查用法的异常：名称与正则表达式模式匹配的变量。例如，名称包含 ignored 或 Ignored 的变量。

The varsIgnorePattern option specifies exceptions not to check for usage: variables whose names match a regexp pattern. For example, variables whose names contain ignored or Ignored.

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/*eslint no-unused-vars: ["error", { "varsIgnorePattern": "[iI]gnored" }]*/

var firstVarIgnored = 1;
var secondVar = 2;
console.log(secondVar);