javascript - 用特殊字符替换子字符串

Question

我有一个字符串，其中包含一些用特殊字符包裹的子字符串。这是我的代码:

var p = 'The quick brown fox jumps over the lazy [dog]. If the [dog] reacted, was it really lazy?';

var regex = /[\\[dog\\]]/g;

console.log(p.replace(regex, 'ferret'));

代码为我提供了输出 The quick brown fox jumps over the lazy ferretdogferret。如果 ferretdogferret 使用react，它真的很懒吗？ 但我期待 快速的棕色狐狸跳过懒惰的雪貂。如果雪貂有反应，它真的很懒吗？

Answer 1

只需删除整个模式周围的字符集，即可匹配\[dog\]:

var p = 'The quick brown fox jumps over the lazy [dog]. If the [dog] reacted, was it really lazy?';

var regex = /\[dog\]/g;

console.log(p.replace(regex, 'ferret'));