D3 leverage?

core tochnology
css, html, javascript, svg

data driven documents

Arrays(d3-array)

var data = [
	{name: "Alice", value: 2},
	{name: "Bob", value: 3},
	{name: "Carol", value: 1},
	{name: "Dwayne", value: 5},
];

d3: html, css, javascript, svg

5+7;
12
function say_hello(){
    return "Hello World!";
}
undefined
say_hello
function say_hello(){
    return "Hello World!";
}
say_hello();
"Hello World!"