notes for ajax, delete, post, update

D3.md

@@ -60,6 +60,27 @@ d3.tsv('path', function(error, data){});
 d3.xml('path', function(error, data){});
 d3.html('path', function(error, data){});
 d3.text('path', function(error, data){});
+
+//make a post
+d3.request('/runs') //make a request to the server
+	.header("Content-Type", "application/json") //tell the server we're sending JSON data
+	.post(
+		//must turn data object into string
+		JSON.stringify(runObject),
+		function(){ //callback
+
+		}
+	);
+
+//send delete
+d3.request('/runs/'+d.id)
+	.header("Content-Type", "application/json") //we're sending data
+	.send('DELETE', function(){}); //send a DELETE request
+
+//send update
+d3.request('/runs/'+d.id)
+	.header("Content-Type","application/json") //we're sending JSON
+	.send('PUT', JSON.stringify(d), function(){});//pass alterted 'd' object to API
 ```
 
 ## Data binding