js正则表达式例子

const emailRegex = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/;
const email = "example@example.com";
console.log(emailRegex.test(email)); // 输出: true

const phoneRegex = /^1[3-9]\d{9}$/;
const phone = "13800138000";
console.log(phoneRegex.test(phone)); // 输出: true

const urlRegex = /^(https?:\/\/)?([\da-z.-]+)\.([a-z.]{2,6})([/\w .-]*)*\/?$/;
const url = "https://www.example.com";
console.log(urlRegex.test(url)); // 输出: true

const text = "Hello, World!";
const newText = text.replace(/World/g, "JavaScript");
console.log(newText); // 输出: "Hello, JavaScript!"

const sentence = "apple, banana, cherry";
const fruits = sentence.split(/, /);
console.log(fruits); // 输出: ["apple", "banana", "cherry"]

const passwordRegex = /^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[@$!%*?&])[A-Za-z\d@$!%*?&]{8,20}$/;
const password = "Password123!";
console.log(passwordRegex.test(password)); // 输出: true

const html = "<div>Hello, World!</div>";
const content = html.match(/<div>(.*?)<\/div>/);
console.log(content[1]); // 输出: "Hello, World!"

const dateRegex = /^\d{4}-\d{2}-\d{2}$/;
const date = "2023-07-06";
console.log(dateRegex.test(date)); // 输出: true