JS操作字符串方法学习系列（3）-每天学习10个方法

const text = 'Hello, World!';
const containsHello = text.includes('Hello'); // true

const text = 'JavaScript';
const char = text.charAt(4); // 'S'
const charCode = text.charCodeAt(0); // 74 (字符 'J' 的Unicode编码)

const text = 'abcdef';
const reversedText = text.split('').reverse().join(''); // 'fedcba'

const fruits = ['apple', 'banana', 'cherry'];
const joinedString = fruits.join(', '); // 'apple, banana, cherry'

const text = 'abczxy';
const maxChar = Math.max(...text); // 'z'
const minChar = Math.min(...text); // 'a'

const number = '42';
const paddedNumber = number.padStart(5, '0'); // '00042'

const unsorted = 'cbadfe';
const sorted = [...unsorted].sort().join(''); // 'abcdef'

const longText = 'This is a long text that needs to be split into chunks.';
const chunkSize = 10;
const chunks = [];
for (let i = 0; i < longText.length; i += chunkSize) {
  chunks.push(longText.slice(i, i + chunkSize));
}

const email = 'example@email.com';
const isValidEmail = /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email); // true

const sentence = 'This is a sample sentence';
const words = sentence.split(/\s+/); // ['This', 'is', 'a', 'sample', 'sentence']