Accurate · 
- Accurate is an precision calculation for JavaScript and Nodejs. supports numbers, decimals, strings, arrays, multidimensional array and expression.
- 解决 JavaScript 与 Node.js 精度计算（浮点数计算精度）问题。支持数字、小数、字符串、数组、多维数组和表达式。
Browsers support
 IE / Edge |
 Firefox |
 Chrome |
 Safari |
 iOS Safari |
 Opera |
|---|---|---|---|---|---|
| IE8+ Edge+ | last 10 versions | last 10 versions | last 2 versions | last 2 versions | last 2 versions |
Install
npm i accurate -S
or
yarn add accurate
Features
- Supports numbers, decimals, strings, arrays and multidimensional array.
- Contains arithmetic expression parser.
- Runs on any JavaScript engine.
- Is easily extensible.
-
Open source.
- 支持数字、小数、字符串、数组和多维数组。
- 包含算术表达式解析器。
- 运行在任何 JavaScript 引擎。
- 易于扩展。
- 开源的。
Usage
import accurate, {
add, addition, subtract, subtraction, multiply, mul, multiplication, division, divide, modulo, modulus, expr
} from 'accurate'
or
const accurate, {
add, addition, subtract, subtraction, multiply, mul, multiplication, division, divide, modulo, modulus, expr
} = require('accurate')
. add（加法）
>
1.1 + 0.3 + 0.1
accurate.add(1.1, 0.3, 0.1)
addition(1.1, 0.3, 0.1)
<-
1.5000000000000002
1.5
1.5
. subtract（减法）
>
1.1 - 0.2 - 0.1
accurate.subtract([1.1, 0.2, 0.1])
subtraction([1.1, 0.2, 0.1])
<-
0.8000000000000002
0.8
0.8
. multiply（乘法）
>
1.1 * 0.1 * 0.2
accurate.multiply([1.1, [0.1, 0.2]])
accurate.mul([1.1, [0.1, 0.2]])
multiplication([1.1, [0.1, 0.2]])
<-
0.022000000000000006
0.022
0.022
0.022
. division（除法）
>
1.1 / 10 / 2
accurate.division([1.1, 10], 2)
accurate.divide([1.1, 10], 2)
<-
0.05500000000000001
0.055
0.055
. modulo（取模）
>
1.1 % 1
accurate.modulo(1.1, 1)
accurate.modulus(1.1, 1)
<-
0.10000000000000009
0.1
0.1
. expr（表达式）
const a = 0.3
const b = 0.1
>
0.3 - 0.1
accurate.expr(`${a}-${b}`)
<-
0.19999999999999998
0.2
>
((1.1+0.3)*4+2*3)/(1.1%0.3-1*0.1)-1*5
accurate.expr('((1.1+0.3)*4+2*3)/(1.1%0.3-1*0.1)-1*5')
accurate.expr('((1.1 + 0.3) * 4 + 2 * 3) / (1.1 % 0.3 - 1 * 0.1) - 1 * 5')
<-
110.99999999999987
111
111