八进制转二进制
八进制转二进制
代码
javascript
// 八进制转二进制
// 输入:'15'
// 输出:'1101'
import { decimalToBinary } from "../decimalToBinary/javascript"
import { leftFillZero } from "../../utilsJs"
export function octalToBinary (octal) {
let res = ''
for (let i = 0; i < octal.length; i++) {
const nowStr = decimalToBinary(Number(octal[i]))
res += i > 0 ? leftFillZero(nowStr, 3) : nowStr
}
return res
}
typescript
// 八进制转二进制
// 输入:'15'
// 输出:'1101'
import { decimalToBinary } from "../decimalToBinary/typescript"
import { leftFillZero } from "../../utils"
export function octalToBinary (octal: string): string {
let res = ''
for (let i = 0; i < octal.length; i++) {
const nowStr = decimalToBinary(Number(octal[i]))
res += i > 0 ? leftFillZero(nowStr, 3) : nowStr
}
return res
}
测试代码
ts
import { expect, test } from 'vitest'
import { octalToBinary } from './typescript.ts'
import { octalToBinary as octalToBinaryJs } from './javascript.js'
test(`'15' to '1101'`, () => {
expect(octalToBinary('15')).toBe('1101')
})
test(`'15' to '1101'`, () => {
expect(octalToBinaryJs('15')).toBe('1101')
})
test(`'11' to '1001'`, () => {
expect(octalToBinary('11')).toBe('1001')
})
test(`'11' to '1001'`, () => {
expect(octalToBinaryJs('11')).toBe('1001')
})