what's the difference between selection.style and selection.attr in D3.js?

Question

I found both of them works in my test:

    .on("mouseover",         function() {             d3.select(this)                 .select("text")                 .style("fill","red");         }) 

or

    .on("mouseover",         function() {             d3.select(this)                 .select("text")                 .attr("fill","red");         }) 

Answer 1

If you look at the HTML you get, you'll see something like:

<text style="fill: red">... 

and

<text fill="red">... 

..which are both legal in SVG, but using attr when you need style could trip you up if you use it for something else.