XMLHttpRequest Basics API GET

response : variableName.status  // returns 200, variableName.statusText // returns "OK"

request: 

     open(method,url,async)

     send(string)

     

     var xmlhttp = new XMLHttpRequest();

     xmlhttp.open('GET', 'process.php', true);

     xmlhttp.send();

Response

-------

GET POST PUT DELETE

(Create Retrieve Update Delete CRUD)

•      Get - retrieves info from the specified source
• POST- sends new information to the specified source
• Put - updates existing info of the specified source
• Delete - removes existing info from the specified source

Status

• 1xx server working on the request
• 2xx okay
• 3xx have to do something else first
• 4xx error
• 5xx server problem