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Node.js buffer fill() 方法

❮ Buffer 模块


示例

用字母 'a' 填充缓冲区

var buf = Buffer.alloc(15);

buf.fill('a');

console.log(buf);
运行示例 »

定义和用法

fill() 方法用指定的值填充缓冲区。

您可以使用 start 和 end 参数填充整个缓冲区或缓冲区的一部分。


语法

buffer.fill(value, start, end, encoding);

参数值

参数 描述
value 必需。要比较的缓冲区
start 可选。开始填充的位置。默认为 0
end 可选。结束填充的位置。默认为缓冲区的末尾
encoding 可选。value 的编码。默认为 "utf8"

技术细节

返回值 包含新填充内容的缓冲区对象。
Node.js 版本 0.5.0

更多示例

示例

用字母 'a' 填充缓冲区的一部分

var buf = Buffer.alloc(15);

buf.fill('a', 5, 10);

console.log(buf);
运行示例 »

❮ Buffer 模块

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