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@color-delta-e/utils

v1.0.1

Published

Utils package for color-delta-e

Downloads

14

Readme

npm npm bundle size npm bundle size GitHub Workflow Status

@color-delta-e/utils

Utility functions for color-delta-e

Installation

npm install color-delta-e @color-delta-e/utils

yarn add color-delta-e @color-delta-e/utils

pnpm add color-delta-e @color-delta-e/utils

API

Filter

filters a list of colors based on if they are perceivably different to the comparitor color


interface FilterOptions {
  type: "rgb" | "hsl" | "lab" // only for declaring the type of ColorTuples
  threshold: number // default 5
}

declare function filter(comparitor: string | ColorTuple, toFilter: Array<string | ColorTuple>, options?: FilterOptions)

const filtered = filter('#dd2244', ['#dd2244' ,'#e83b3b', '#45b0b0'], { 
  threshold: 5,
  type: 'rgb' // only needed if using color tuples eg [255,255,255] otherwise colors are infered
})

console.log(filtered) // ['#e83b3b', '#45b0b0']

Sort

sorts a list of colors based on their perceivable difference to the comparitor color, can


interface SortOptions {
  type: "rgb" | "hsl" | "lab" // default: 'rgb' - Note: only for declaring the type of ColorTuples
  threshold: number // default 5
  direction: 'asc' | 'dec' // default 'asc'
}

declare function sort(comparitor: string | ColorTuple, toSort: Array<string | ColorTuple>, options?: SortOptions)

const sorted = sort('#dd2244', ['#e83b3b', '#db2424', '#df1111', '#b50303'], {
   threshold: 5,
   direction: 'asc' // 'asc' | 'dec'
   type: 'rgb' // only needed if using color tuples eg [255,255,255] otherwise colors are infered
})

console.log(sorted) // ['#b50303', '#df1111', '#db2424', '#e83b3b']

Pipe

A color-delta-e specific version of pipe, interface of functions passed to it have to follow a specifc structure.

pass in pipeable functions, and will return a new function that will perform those actions on the array with comparitor, the returning array will be passed to the next function as its new array argument.

type PipeableOptionInterface = Record<string, any> 
  && { 
    type: "rgb" | "hsl" | "lab",
    threshold: number
    }


// a pipeable function has to follow this interface
declare function pipeableInterface(comparitor: string | ColorTuple, toPipe: Array<string | ColorTuple>, options?: PipeableOptionInterface )




const pipedFilterSort = pipe(filter, sort)

const result = pipedFilterSort('#dd2244', ['#dd2244' ,'#e83b3b', '#45b0b0'], {
  //a union of all piped functions options
})

console.log(result) // ['#45b0b0', '#e83b3b']