buf.writeFloatLE(value[, offset])


  • value <number> 要写入 buf 的数字。
  • offset <integer> 开始写入之前要跳过的字节数。 必须满足 0 <= offset <= buf.length - 4默认值: 0
  • 返回: <integer> offset 加上写入的字节数。

value 作为小端序写入 buf 中指定的 offset。 当 value 不是 JavaScript 数字时,则行为未定义。

import { Buffer } from 'node:buffer';

const buf = Buffer.allocUnsafe(4);

buf.writeFloatLE(0xcafebabe, 0);

console.log(buf);
// 打印: <Buffer bb fe 4a 4f>const { Buffer } = require('node:buffer');

const buf = Buffer.allocUnsafe(4);

buf.writeFloatLE(0xcafebabe, 0);

console.log(buf);
// 打印: <Buffer bb fe 4a 4f>
  • value <number> Number to be written to buf.
  • offset <integer> Number of bytes to skip before starting to write. Must satisfy 0 <= offset <= buf.length - 4. Default: 0.
  • Returns: <integer> offset plus the number of bytes written.

Writes value to buf at the specified offset as little-endian. Behavior is undefined when value is anything other than a JavaScript number.

import { Buffer } from 'node:buffer';

const buf = Buffer.allocUnsafe(4);

buf.writeFloatLE(0xcafebabe, 0);

console.log(buf);
// Prints: <Buffer bb fe 4a 4f>const { Buffer } = require('node:buffer');

const buf = Buffer.allocUnsafe(4);

buf.writeFloatLE(0xcafebabe, 0);

console.log(buf);
// Prints: <Buffer bb fe 4a 4f>