feat: 增加 八进制转二进制

docs/.vitepress/otherItems.ts

@@ -26,6 +26,10 @@ const otherItems = [
   {
     "text": "二进制转十进制",
     "link": "/other/binaryToDecimal"
+  },
+  {
+    "text": "八进制转二进制",
+    "link": "/other/octalToBinary"
   }
 ]
 

docs/other/index.md

@@ -7,3 +7,4 @@
 - [链表反转](./listNodeReverse)
 - [十进制转二进制](./decimalToBinary)
 - [二进制转十进制](./binaryToDecimal)
+- [八进制转二进制](./octalToBinary)

docs/other/octalToBinary.md

@@ -0,0 +1,12 @@
+# 八进制转二进制
+
+八进制转二进制
+
+## 代码
+
+::: code-group
+
+<<< ../../src/other/octalToBinary/javascript.js{javascript} [javascript]
+<<< ../../src/other/octalToBinary/typescript.ts{typescript} [typescript]
+
+:::

src/other/octalToBinary/javascript.js

@@ -0,0 +1,13 @@
+// 八进制转二进制
+// 输入：'15'
+// 输出：'1101'
+
+import { decimalToBinary } from "../decimalToBinary/javascript"
+
+export function octalToBinary (str) {
+  let res = ''
+  for (let i = 0; i < str.length; i++) {
+    res += decimalToBinary(Number(str[i]))
+  }
+  return res
+}

src/other/octalToBinary/typescript.ts

@@ -0,0 +1,13 @@
+// 八进制转二进制
+// 输入：'15'
+// 输出：'1101'
+
+import { decimalToBinary } from "../decimalToBinary/typescript"
+
+export function octalToBinary (str: string): string {
+  let res = ''
+  for (let i = 0; i < str.length; i++) {
+    res += decimalToBinary(Number(str[i]))
+  }
+  return res
+}

test/other/octalToBinary.test.ts

@@ -0,0 +1,6 @@
+import { expect, test } from 'vitest'
+import { octalToBinary } from '../../src/other/octalToBinary/typescript.ts'
+
+test(`'15' to '1101'`, () => {
+  expect(octalToBinary('15')).toBe('1101')
+})