如何使用正则表达式查找字符串是否包含两个特定字符和一个点？

.*a.*b.*\..*

const regex = /.*a.*b.*\..*/;
const testStrings = [
  "This is a test string with a.b in it.",
  "Another string without the required pattern.",
  "Yet another string with a.b but not in order.",
  "ab."
];

testStrings.forEach(str => {
  if (regex.test(str)) {
    console.log(`String "${str}" matches the pattern.`);
  } else {
    console.log(`String "${str}" does not match the pattern.`);
  }
});