js match模糊匹配

const text = "The quick brown fox jumps over the lazy dog.";
const keyword = "fox";

// 使用正则表达式进行模糊匹配
const regex = new RegExp(keyword, 'i'); // 'i' 表示不区分大小写
const result = text.match(regex);

console.log(result); // 输出: ["fox", index: 16, input: "The quick brown fox jumps over the lazy dog.", groups: undefined]

function escapeRegExp(string) {
  return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); // $& 表示整个匹配的子字符串
}

const keywordWithSpecialChars = "f.o*x";
const escapedKeyword = escapeRegExp(keywordWithSpecialChars);
const regex = new RegExp(escapedKeyword, 'i');
const result = text.match(regex);

console.log(result); // 输出: ["fox", index: 16, input: "The quick brown fox jumps over the lazy dog.", groups: undefined]