Javascript AJAX: Difference between revisions
From wikinotes
(Created page with "XHR requests let you POST a request to a REST API, and update the page from a HTML event when it replies. <syntaxhighlight lang="javascript"> var payload = { "foo": "bar" };...") |
(No difference)
|
Revision as of 02:13, 13 May 2022
XHR requests let you POST a request to a REST API, and update the page from a HTML event when it replies.
var payload = { "foo": "bar" };
var json_payload = JSON.stringify(payload);
var XHR = new XMLHttpRequest();
XHR.open("POST", "/path/on/site");
XHR.addEventListener("error", function() {
console.log("An error occurred");
});
XHR.addEventListener("load", function() {
document.getElementById("results").innerHTML = this.responseText;
});
XHR.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
XHR.send(json_payload);