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@libeiha/utils

v1.0.1

Published

一个简单实用的JavaScript工具库,提供数字四舍五入和数组扁平化功能

Readme

myUtils

一个简单实用的JavaScript工具库,提供常用的数字和数组处理方法。

安装

npm install @libeiha/utils

使用方法

const { round, flatten } = require('@libeiha/utils');

// 使用四舍五入方法
const result1 = round(3.14159, 2);  // 3.14
const result2 = round(3.5);         // 4
const result3 = round(2.345, 1);    // 2.3

// 使用数组扁平化方法
const arr1 = flatten([1, [2, [3, [4]]]]); // [1, 2, 3, 4]
const arr2 = flatten([1, [2, [3, [4]]]], 2); // [1, 2, 3, [4]]
const arr3 = flatten([1, 2, 3]); // [1, 2, 3]

API 文档

round(num, decimals)

对数字进行四舍五入。

参数:

  • num (number): 需要四舍五入的数字
  • decimals (number, 可选): 保留的小数位数,默认为 0

返回值:

  • (number): 四舍五入后的结果

示例:

round(3.14159, 2);  // 3.14
round(3.5);         // 4
round(10.567, 1);   // 10.6

flatten(arr, depth)

将多维数组扁平化为一维数组。

参数:

  • arr (Array): 需要扁平化的数组
  • depth (number, 可选): 扁平化深度,默认为 Infinity(完全扁平化)

返回值:

  • (Array): 扁平化后的数组

示例:

flatten([1, [2, [3, [4]]]]); // [1, 2, 3, 4]
flatten([1, [2, [3, [4]]]], 1); // [1, 2, [3, [4]]]
flatten([1, [2, [3, [4]]]], 2); // [1, 2, 3, [4]]

许可证

MIT

链接