number-operator v1.0.2

number-operator

Because JS uses the IEEE 754 double version (64-bit), and it has this problem as long as it uses the IEEE 754 language. So when we calculate the number operation, there will be a precision error

Installation

npm install -D number-operator

Usage

Normal environment computing

console.log(0.1+0.2); 
0.30000000000000004 ❌

console.log(0.3-0.1); 0.19999999999999998 ❌

console.log(0.1*0.2); 0.020000000000000004 ❌

console.log(0.3/0.2); 1.4999999999999998 ❌

> use number-operator

require('number-operator'); or //import 'number-operator'

console.log((0.1).plus(0.2)); 0.3 🙆

console.log((0.3).minus(0.1)); 0.2 🙆

console.log((0.1).times(0.2)); 0.02 🙆

console.log((0.3).div(0.2)); 1.5 🙆

> chained call

console.log((0.3).minus(0.1).plus(0.1)); 0.3 🙆

String type can also be used

> console.log(('0.3')._minus_(0.1)._plus_('0.1'));
0.3 🙆