在匹配时忽略大小写
let myString = "freeCodeCamp";
let fccRegex = /freeCodeCamp/i; // Change this line
let result = fccRegex.test(myString);
let myString = "freeCodeCamp";
let fccRegex = /freeCodeCamp/i; // Change this line
let result = fccRegex.test(myString);