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Node.js Buffer.concat() 方法

❮ Buffer 模块


示例

将三个缓冲区对象合并成一个

var buf1 = Buffer.from('a');
var buf2 = Buffer.from('b');
var buf3 = Buffer.from('c');
var arr = [buf1, buf2, buf3];

var buf = Buffer.concat(arr);
console.log(buf);
运行示例 »

定义和用法

concat() 方法将数组中所有缓冲区对象合并成一个缓冲区对象。


语法

 Buffer.concat(arr, length);

参数值

参数 描述
arr 必需。要连接的缓冲区数组
length 可选。指定连接后的缓冲区的长度

技术细节

返回值 一个 Buffer
Node.js 版本 0.7.11

❮ Buffer 模块

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