JSFiddle - React, Tailwind, and code Playground

by Shang-De You

JavaScript

var dataSet = [10, 20, 8, 15, 35];

var min = d3.min(dataSet);
var max = d3.max(dataSet);

var linear = d3.scale.linear()
        .domain([min, max])
        .range([0, 100])
        .clamp(true)

var test = linear(50);    //返回 0
console.log(test)


var index = [0, 1, 2, 3, 4];
var color = ["red", "blue", "green", "yellow", "black"];

var ordinal = d3.scale.ordinal()
        .domain(index)
        .range(color);

var test = ordinal(2)

console.log(test)