combinatoire

Installation

npm install number-generator

Simple Usage

const combinatoire = require('combinatoire');

console.log(combinatoire({
    props : {
        color1 : ['white', 'yellow'],
        color2 : ['black', 'grey']
    }
}));

Will print

[
  {color1: 'white', color2: 'black'},
  {color1: 'white', color2: 'grey'},
  {color1: 'yellow', color2: 'black'},
  {color1: 'yellow', color2: 'grey'}
]

Explicit-form Usage

In some specific case :

• When you need to use array or function values as props
• When you need to give a specific id to your parameter (different from value)

It is useful to expicit the values like

const combinatoire = require('combinatoire');

console.log(combinatoire({
    props : {
        color1 : [{
            value: ['white1', 'white2']
        }, {
            value: ['yellow1', 'yellow2']
        }],
        color2 : ['black', 'grey']
    }
}))

Will print

[
  {color1: ['white1', 'white2'], color2: 'black'},
  {color1: ['yellow1', 'yellow2'], color2: 'grey'},
  {color1: ['white1', 'white2'], color2: 'black'},
  {color1: ['yellow1', 'yellow2'], color2: 'grey'}
]

Usage with function prop

const combinatoire = require('combinatoire');

console.log(combinatoire({
    props : {
        color1 : ['white', 'yellow'],
        filename : function({color1}){
            return [color1+'.png', color1+'.jpg']
        }
    }
}))

NB: props of type 'function' are resolved after other props, so they can takes non-function props as input but not other 'function' props

Will print

[
  {color1: 'white', filename: 'white.png'},
  {color1: 'white', filename: 'white.jpg'},
  {color1: 'yellow', filename: 'red'},
  {color1: 'yellow', filename: 'pink'}
]

Promise Usage

const combinatoireAsync = require('combinatoire').async;

combinatoireAsync({
    props : {
        color1 : ['white', 'yellow'],
        filename : function({color1}){
            return Promise.resolve([color1+'.png', color1+'.jpg']);
        }
    }
}).then(res => {
    console.log(res);
})

Will print

[
  {color1: 'white', filename: 'white.png'},
  {color1: 'white', filename: 'white.jpg'},
  {color1: 'yellow', filename: 'red'},
  {color1: 'yellow', filename: 'pink'}
]

Usage with tree-props

const combinatoire = require('combinatoire');

console.log(combinatoire({
    props : {
        color1 : [{
            value: 'white',
            props: { color2: ['black', 'blue']}
        }, {
            value: 'yellow',
            props: { color2: ['red', 'pink']}
        }]
    }
}))

Will print

[
  {color1: 'white', color2: 'black'},
  {color1: 'white', color2: 'blue'},
  {color1: 'yellow', color2: 'red'},
  {color1: 'yellow', color2: 'pink'}
]