🚀v1.4.2 四值法拆分

CHANGELOG.md

@@ -1,3 +1,6 @@
+### 🚀v1.4.2 四值法拆分
+➕: fourValueSplit 四值法拆分
+
 ### 🚀v1.4.1 递归调用增加父节点参数
 ➕: recursive 递归调用增加父节点参数
 

README.md

@@ -1,6 +1,6 @@
-🏃‍包含一些常用方法例如对象深克隆/数组交集、并集、差集/二维向量点乘、叉乘/股票KDJ、MACD、RSI、BOLL/验证为空、车牌号、邮箱、身份证、统一社会信用代码、手机号、版本对比/转换日期、星座、身份证解析、字节...持续更新整合
+🏃‍包含一些常用方法例如对象深克隆、递归调用、一一对比/数组交集、并集、差集/二维向量点乘、叉乘/股票KDJ、MACD、RSI、BOLL/验证为空、车牌号、邮箱、身份证、统一社会信用代码、手机号、版本对比/转换日期、星座、身份证解析、字节...持续更新整合
 
-![action](https://img.shields.io/github/actions/workflow/status/linyisonger/3r.Tool/cd.yml)![npm](https://img.shields.io/npm/dw/@3r/tool)[![Coverage Status](https://coveralls.io/repos/github/linyisonger/3r.Tool/badge.svg?branch=master)](https://coveralls.io/github/linyisonger/3r.Tool?branch=master)![release](https://img.shields.io/librariesio/release/npm/@3r/tool)![npm](https://img.shields.io/npm/v/@3r/tool)![sourcerank](https://img.shields.io/librariesio/sourcerank/npm/@3r/tool)![NPM](https://img.shields.io/npm/l/@3r/tool)[![Code Climate](https://codeclimate.com/github/linyisonger/3r.Tool/badges/gpa.svg)](https://codeclimate.com/github/linyisonger/3r.Tool)[![Test Coverage](https://codeclimate.com/github/linyisonger/3r.Tool/badges/coverage.svg)](https://codeclimate.com/github/linyisonger/3r.Tool/coverage)[![docs](https://img.shields.io/badge/docs-info-blue)](https://linyisonger.github.io/3r.Tool/)
+![action](https://img.shields.io/github/actions/workflow/status/linyisonger/3r.Tool/cd.yml)![npm](https://img.shields.io/npm/dw/@3r/tool)[![Coverage Status](https://coveralls.io/repos/github/linyisonger/3r.Tool/badge.svg?branch=master)](https://coveralls.io/github/linyisonger/3r.Tool?branch=master)![release](https://img.shields.io/librariesio/release/npm/@3r/tool)![npm](https://img.shields.io/npm/v/@3r/tool)![sourcerank](https://img.shields.io/librariesio/sourcerank/npm/@3r/tool)![NPM](https://img.shields.io/npm/l/@3r/tool)[![Code Climate](https://codeclimate.com/github/linyisonger/3r.Tool/badges/gpa.svg)](https://codeclimate.com/github/linyisonger/3r.Tool)[![Test Coverage](https://codeclimate.com/github/linyisonger/3r.Tool/badges/coverage.svg)](https://codeclimate.com/github/linyisonger/3r.Tool/coverage)[![codecov](https://codecov.io/gh/linyisonger/3r.Tool/graph/badge.svg?token=0VLDX7ON0N)](https://codecov.io/gh/linyisonger/3r.Tool)[![docs](https://img.shields.io/badge/docs-info-blue)](https://linyisonger.github.io/3r.Tool/)
 
 #### 如何使用工具包 ?
 
@@ -110,7 +110,8 @@ console.log('蛇形命名法 -> 小驼峰命名法', Convertor.snakeCaseToLowerC
 console.log('驼峰命名法 -> 蛇形命名法', Convertor.camelcaseToSnakeCase('LowerCaseWithUnderscores'));
 console.log('通过日期获取星座', Convertor.getConstellationByDate('09/14'));
 console.log('身份证号解析', '230504199607116664'.citizenIdentificationNumberParse);
-console.log('字节转换',Convertor.byteFormat(1099511627776,2));
+console.log('字节转换', Convertor.byteFormat(1099511627776, 2));
+console.log('四值法拆分', Convertor.fourValueSplit(1));
 
 ```
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@3r/tool",
-  "version": "1.4.1",
+  "version": "1.4.2",
   "description": "🏃‍包含一些常用方法例如对象深克隆、递归调用、一一对比/数组交集、并集、差集/二维向量点乘、叉乘/股票KDJ、MACD、RSI、BOLL/验证为空、车牌号、邮箱、身份证、统一社会信用代码、手机号、版本对比/转换日期、星座、身份证解析、字节...持续更新整合",
   "main": "index.js",
   "type": "module",

src/lib/convertor.ts

@@ -440,6 +440,25 @@ export class Convertor {
 		}
 		return (byte / Convertor.byteDifferenceValue[Convertor.byteDifferenceValue.length - 1]).toFixed(fractionDigits) + units[units.length - 1]
 	}
+
+	/**
+	 * 四值法拆分
+	 * 1 => [1,1,1,1]
+	 * [1] => [1,1,1,1]
+	 * [1,2] => [1,2,1,2]
+	 * [1,2,3]=> [1,2,3,2]
+	 * [1,2,3,4] => [1,2,3,4]
+	 * @param val 输入值
+	 */
+	static fourValueSplit(val: number | number[]): number[] {
+		if (Array.isArray(val)) {
+			if (val.length === 4) return val
+			if (val.length === 3) return val.concat([val[1]])
+			if (val.length === 2) return val.concat([val[0], val[1]])
+			if (val.length === 1) return [val[0], val[0], val[0], val[0]]
+			throw Error('array length error .')
+		} else return [val, val, val, val]
+	}
 }
 
 [

test/convertor.test.js

@@ -24,7 +24,8 @@ let run = function () {
     console.log('驼峰命名法 -> 蛇形命名法', Convertor.camelcaseToSnakeCase('LowerCaseWithUnderscores'));
     console.log('通过日期获取星座', Convertor.getConstellationByDate('09/14'));
     console.log('身份证号解析', '230504199607116664'.citizenIdentificationNumberParse);
-    console.log('字节转换',Convertor.byteFormat(1099511627776,2));
+    console.log('字节转换', Convertor.byteFormat(1099511627776, 2));
+    console.log('四值法拆分', Convertor.fourValueSplit(1));
 }
 try {
     describe('转换模块', function () {
@@ -169,7 +170,14 @@ try {
             expect(byte.byteFormat(2)).toEqual('12.06KB')
             expect(Convertor.byteFormat('1024', 2)).toEqual('1.00KB')
         })
-
+        it('四值法拆分', function () {
+            expect(Convertor.fourValueSplit(1)).toEqual([1, 1, 1, 1])
+            expect(Convertor.fourValueSplit([1])).toEqual([1, 1, 1, 1])
+            expect(Convertor.fourValueSplit([1, 2])).toEqual([1, 2, 1, 2])
+            expect(Convertor.fourValueSplit([1, 2, 3])).toEqual([1, 2, 3, 2])
+            expect(Convertor.fourValueSplit([1, 2, 3, 4])).toEqual([1, 2, 3, 4])
+            expect(() => Convertor.fourValueSplit([1, 2, 3, 4, 5])).toThrow()
+        })
     })
 } catch (error) {
     // describe is not defined 无需理会 调用方式不一致