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Node.js buffer includes() 方法

❮ Buffer 模块


示例

检查缓冲区是否包含短语“welcome”

var buf = Buffer.from('Hello, and welcome to Rome!');

console.log(buf.includes('welcome'));
运行示例 »

定义和用法

includes() 方法检查缓冲区中是否包含指定的值。

如果包含该值则返回 true,否则返回 false


语法

buffer.includes(value, start, encoding);

参数值

参数 描述
value 必需。要搜索的内容。合法值类型
字符串
缓冲区
数字(整数)
start 可选。开始搜索的位置。默认为 0
encoding 可选。如果 value 是字符串,则此参数用于指定其编码。默认为“utf8”

技术细节

返回值 布尔值
Node.js 版本 5.3.0

❮ Buffer 模块

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