Rails没有在app / assets / javascripts下注册javascript文件

Question

I'm currently trying to integrate d3 with my rails app. After installing the d3-rails gem, I came across this tutorial on d3. Somewhere in the tutorial, the below code is provided

<meta charset="utf-8">
<style>

.chart div {
  font: 10px sans-serif;
  background-color: steelblue;
  text-align: right;
  padding: 3px;
  margin: 1px;
  color: white;
}

</style>
<div class="chart"></div>
<script>

var data = [4, 8, 15, 16, 23, 42];

var x = d3.scale.linear()
    .domain([0, d3.max(data)])
    .range([0, 420]);

d3.select(".chart")
  .selectAll("div")
    .data(data)
  .enter().append("div")
    .style("width", function(d) { return x(d) + "px"; })
    .text(function(d) { return d; });

</script>

If I were to include the above code as it is into my new.html.erb file, the chart will show.

I then created a new graph.js fiel under app/assets/javascripts and decided to put everything between the <script> </script > tag inside graph.js . Now when I open up new.html.erb , the chart will not show anymore.

Am I doing something wrong here that's causing rails to not recognize graph.js ?

Answer 1

Did you compile the assets?

You'll need to run:

rake asset:precompile