d3 v4 line chart

index.js

import { scaleLinear, scaleLog, axisLeft, axisBottom, select, line, format } from 'd3';

const yScale = scaleLog().domain([0, 100]).range([300, 0])
const xScale = scaleLinear().domain([1, 100]).range([0, 500]);
const pathline = line().x(d => xScale(d.x)).y(d => yScale(d.y));

axisLeft(yScale).tickValues([maxViews, minViews]).tickFormat(format('.2s'))(select('.leftAxis'));
axisBottom(xScale).tickValues([1, songs.length])(select('.bottomAxis'));