Package Exports

d3-utils
d3-utils/get
d3-utils/lifecycle

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (d3-utils) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

`d3-utils`

Small utils to make developing with d3 easier, inspired by d3-jetpack and d3-starterkit

Install

npm install d3-utils

Usage

var d3 = require('d3')

var lifecycle = require('d3-utils/lifecycle')
var ƒ = require('d3-utils/get')
var o = require('d3-utils/compose')

var scale = {x: d3.scale.linear().range([0, 1000])}

d3.selectAll('li')
    .data(someDataArray) // [{label: 'Hello world', x: 0.5}, ...]
  .call(lifecycle(
    enter => enter.append('li').text(ƒ('label')),
    update => update.style('top', o(ƒ('x'), scale.x)),
    exit => exit.remove()
  ))

API

`utils.lifecycle([enter], [update], [exit])`

Makes handeling the lifecycle of a D3 selection a bit easier.

`enter`

Type: Function
Default noop

Calls this function with selection.enter()

`update`

Type: Function
Default noop

Calls this function with selection

`exit`

Type: Function
Default noop

Calls this function with selection.exit()

`utils.get(prop, [default])`

Returns a function that accesses prop and returns it, optionally returning default if null

`prop`

Type: String

Retrieve value with key prop from whatever object is called on the returining function

`default`

Type: Any
Default null

Default value to return

`utils.compose([fn...])`

Takes any number of functions and composes them from left to right, returning the compose function, eg:

f(g(h(x))) === utils.compose(h, g, f)(x)

License

ISC