buf.includes(value[, byteOffset][, encoding])

• value <string> | <Buffer> | <Uint8Array> | <integer> 要查找什么。
• byteOffset <integer> 在 buf 中从哪里开始搜索。如果为负，则偏移量从 buf 的末尾计算。默认值： 0。
• encoding <string> 如果 value 是字符串，则这是它的编码方式。默认值： 'utf8'。
• 返回：<boolean> 如果在 buf 中找到了 value，则为 true，否则为 false。

等同于 buf.indexOf() !== -1。

🌐 Equivalent to buf.indexOf() !== -1.

import { Buffer } from 'node:buffer';

const buf = Buffer.from('this is a buffer');

console.log(buf.includes('this'));
// Prints: true
console.log(buf.includes('is'));
// Prints: true
console.log(buf.includes(Buffer.from('a buffer')));
// Prints: true
console.log(buf.includes(97));
// Prints: true (97 is the decimal ASCII value for 'a')
console.log(buf.includes(Buffer.from('a buffer example')));
// Prints: false
console.log(buf.includes(Buffer.from('a buffer example').slice(0, 8)));
// Prints: true
console.log(buf.includes('this', 4));
// Prints: falseconst { Buffer } = require('node:buffer');

const buf = Buffer.from('this is a buffer');

console.log(buf.includes('this'));
// Prints: true
console.log(buf.includes('is'));
// Prints: true
console.log(buf.includes(Buffer.from('a buffer')));
// Prints: true
console.log(buf.includes(97));
// Prints: true (97 is the decimal ASCII value for 'a')
console.log(buf.includes(Buffer.from('a buffer example')));
// Prints: false
console.log(buf.includes(Buffer.from('a buffer example').slice(0, 8)));
// Prints: true
console.log(buf.includes('this', 4));
// Prints: false拷贝