D3.js -- Ordinal scale (version 3 to version 4)
<p>I am taking an Udemy's course on D3.js.</p>

<p>Unfortunately because of the new version D3.js came out, there aren't any up-to-date tutorials on their new syntax so I am glancing at their API's wiki.</p>

<p>That being said, I've been stuck on how to translate this code (version 3). I am learning <strong>ordinal scale</strong></p>

<pre><code>var data = [
    {key: "Glazed",     value: 132},
    {key: "Jelly",      value: 71},
    {key: "Holes",      value: 337},
    {key: "Sprinkles",  value: 93},
    {key: "Crumb",      value: 78},
    {key: "Chocolate",  value: 43},
    {key: "Coconut",    value: 20},
    {key: "Cream",      value: 16},
    {key: "Cruller",    value: 30},
    {key: "Éclair",     value: 8},
    {key: "Fritter",    value: 17},
    {key: "Bearclaw",   value: 21}
];
var w = 800;
var h = 450;
var margin = {
    top: 20,
    bottom: 20,
    left: 20,
    right: 20
};
var width = w - margin.left - margin.right;
var height = h - margin.top - margin.bottom;
var x = d3.scale.linear()
        .domain([0, d3.max(data, function(d){
            return d.value;
        })])
        .range([0, width]);
var y = d3.scale.ordinal()
        .domain(data.map(function(entry){
            return entry.key;
        }))
        .rangeBands([0, height]);
var svg = d3.select("body").append("svg")
            .attr("id", "chart")
            .attr("width", w)
            .attr("height", h);
var chart = svg.append("g")
            .classed("display", true)
            .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
function plot(params){
    this.selectAll(".bar")
        .data(params.data)
        .enter()
            .append("rect")
            .classed("bar", true)
            .attr("x", 0)
            .attr("y", function(d,i){
                return y(d.key);
            })
            .attr("height", function(d,i){
                return y.rangeBand()-1;
            })
            .attr("width", function(d){
                return x(d.value);
            });
    this.selectAll(".bar-label")
        .data(params.data)
        .enter()
            .append("text")
            .classed("bar-label", true)
            .attr("x", function(d){
                return x(d.value);
            })
            .attr("dx", -4)
            .attr("y", function(d,i){
                return y(d.key);
            })
            .attr("dy", function(d,i){
                return y.rangeBand()/1.5+2;
            })
            .text(function(d){
                return d.value;
            })
}
plot.call(chart, {data: data});
</code></pre>

<p>to version 4.</p>

<p>Looking at their API Wiki, it seems that get rid <strong>rangeBand</strong> function <a href="https://github.com/d3/d3/blob/master/CHANGES.md" rel="noreferrer">CHANGES.MD</a></p>

<p>I've tried my best translating but I can't figure it out what it's wrong:</p>

<pre><code>var data = [
    {key: "Glazed",     value: 132},
    {key: "Jelly",      value: 71},
    {key: "Holes",      value: 337},
    {key: "Sprinkles",  value: 93},
    {key: "Crumb",      value: 78},
    {key: "Chocolate",  value: 43},
    {key: "Coconut",    value: 20},
    {key: "Cream",      value: 16},
    {key: "Cruller",    value: 30},
    {key: "Éclair",     value: 8},
    {key: "Fritter",    value: 17},
    {key: "Bearclaw",   value: 21}
];
var w = 800;
var h = 450;
var margin = {
    top: 20,
    bottom: 20,
    left: 20,
    right: 20
};
var width = w - margin.left - margin.right;
var height = h - margin.top - margin.bottom;
var x = d3.scaleLinear()
        .domain([0, d3.max(data, function(d){
            return d.value;
        })])
        .range([0, width]);
var y = d3.scaleOrdinal()
        .domain(data.map(function(entry){
            return entry.key;
        }))
        .range([0, height]);

var svg = d3.select("body").append("svg")
            .attr("id", "chart")
            .attr("width", w)
            .attr("height", h);
var chart = svg.append("g")
            .classed("display", true)
            .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
function plot(params){
    this.selectAll(".bar")
        .data(params.data)
        .enter()
            .append("rect")
            .classed("bar", true)
            .attr("x", 0)
            .attr("y", function(d,i){
                return y(d.key);
            })
            .attr("height", function(d,i){
                return y.range(1)-1;
            })
            .attr("width", function(d){
                return x(d.value);
            });
    this.selectAll(".bar-label")
        .data(params.data)
        .enter()
            .append("text")
            .classed("bar-label", true)
            .attr("x", function(d){
                return x(d.value);
            })
            .attr("dx", -4)
            .attr("y", function(d,i){
                return y(d.key);
            })
            .attr("dy", function(d,i){
                return y.range(1)/1.5+2;
            })
            .text(function(d){
                return d.value;
            })
}
plot.call(chart, {data: data});
</code></pre>

<p><a href="http://codepen.io/neotriz/pen/JRWvQQ" rel="noreferrer">Working Version 3</a></p>

<p><a href="http://codepen.io/neotriz/pen/jryQBP?editors=1010" rel="noreferrer">Not Working Version 4 </a></p>