ajax code
$.ajax({ type: 'GET', dataType: 'json', url: url, timeout: 5000, success: function(data, textStatus ){ alert('request successful'); }, fail: function(xhr, textStatus, errorThrown){ alert('request failed'); } });
ajax code
$.ajax({ type: 'GET', dataType: 'json', url: url, timeout: 5000, success: function(data, textStatus ){ alert('request successful'); }, fail: function(xhr, textStatus, errorThrown){ alert('request failed'); } });
how to make ajax request javascript
//Change the text of a <div> element using an AJAX //request: //using JQuery $("button").click(function(){ $.ajax({url: "demo_test.txt", success: function(result){ $("#div1").html(result); }}); }); //To send a request to a server, we use the open() //and send() methods of the XMLHttpRequest object: // Javascript xhttp.open("GET", "ajax_info.txt", true); xhttp.send(); //example below <html> <body> <h1>The XMLHttpRequest Object</h1> <button type="button" onclick="loadDoc()">Request data</button> <p id="demo"></p> <script> function loadDoc() { var xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { document.getElementById("demo").innerHTML = this.responseText; } }; xhttp.open("GET", "demo_get.asp", true); xhttp.send(); } </script> </body> </html>
ajax
With Ajax, web applications can send and retrieve data from a server asynchronously without interfering with the display and behaviour of the existing page.
ajax programming
// BEGIN // JavaScript example // An example of a simple Ajax request using the GET method, written in JavaScript. // get-ajax-data.js: // This is the client-side script. // Initialize the HTTP request. var xhr = new XMLHttpRequest(); xhr.open('GET', 'send-ajax-data.php'); // Track the state changes of the request. xhr.onreadystatechange = function () { var DONE = 4; // readyState 4 means the request is done. var OK = 200; // status 200 is a successful return. if (xhr.readyState === DONE) { if (xhr.status === OK) { console.log(xhr.responseText); // 'This is the output.' } else { console.log('Error: ' + xhr.status); // An error occurred during the request. } } }; // Send the request to send-ajax-data.php xhr.send(null); // END // BEGIN // send-ajax-data.php: <?php // This is the server-side script. // Set the content type. header('Content-Type: text/plain'); // Send the data back. echo "This is the output."; ?> // END // BEGIN // Fetch is a new native JavaScript API fetch('send-ajax-data.php') .then(data => console.log(data)) .catch (error => console.log('Error:' + error)); // END // BEGIN // ES7 async/await example: async function doAjax() { try { const res = await fetch('send-ajax-data.php'); const data = await res.text(); console.log(data); } catch (error) { console.log('Error:' + error); } } doAjax(); // END
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