4.0.0 • Published 1 month ago
@algorithm.ts/calculator v4.0.0
A tiny calculator for number arithmetics such as +-*/()
.
Install
npm
npm install --save @algorithm.ts/calculator
yarn
yarn add @algorithm.ts/calculator
Usage
// Perform integer arithmetics.
import calculator from 'algorithm.ts/calculator'
// or
import { calculator } from 'algorithm.ts/calculator'
// Perform decimal arithmetics.
import { decimalCalculator } from 'algorithm.ts/calculator'
// Perform bigint arithmetics.
import { bigintCalculator } from 'algorithm.ts/calculator'
Examples
integer arithmetics
import calculator from '@algorithm.ts/calculator' calculator.calculate('3/2') // => 1 calculator.calculate('-2+1') // => -1 calculator.calculate('-2*3 + 2*5*3/6') // => -1 calculator.calculate('(1+(4+5+2)-3)+(6+8)') // => 23
decimal arithmetics
import { decimalCalculator as calculator } from '@algorithm.ts/calculator' calculator.calculate('3/2') // => 1.5 calculator.calculate('-2+1') // => -1 calculator.calculate('-2*3 + 2*5*3/6') // => -1 calculator.calculate('(1+(4+5+2)-3)+(6+8)') // => 23
bigint arithmetics
import { bigintCalculator as calculator } from '@algorithm.ts/calculator' calculator.calculate('22222222222222222222222222222 * 3333333333333333333323232') // => 74074074074074074073849599999259259259259259259261504n
Illegal inputs
import calculator from '@algorithm.ts/calculator' calculator.calculate('-2++1') // => SyntaxError calculator.calculate('-2*/23') // => SyntaxError calculator.calculate('1+(4+5+2))') // => SyntaxError calculator.calculate('1+(4+5+2') // => SyntaxError
A solution of https://leetcode.com/problems/basic-calculator/
import calculator from '@algorithm.ts/calculator' export function calculate(expression: string): number { return calculator.calculate(expression) }
A solution of https://leetcode.com/problems/basic-calculator-ii/
import calculator from '@algorithm.ts/calculator' export function calculate(expression: string): number { return calculator.calculate(expression) }
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