Laravel 5 Check if request is ajax request | Ajax request validation

<?php
use Illuminate\Support\Facades\Request;

return Request::ajax(); /* True | False */

What's the best way to retry an AJAX request on failure using jQuery | The best way to retry an AJAX request on failure using jQuery | jQuery AJAX retry

$.ajax({ url: 'http://', type: 'POST', data: {}, tryCount: 0, retryLimit: 3, success: function (response) { //do something }, error: function (xhr, textStatus, errorThrown) { this.tryCount++; if (this.tryCount <= this.retryLimit) { //try again $.ajax(this); return; } if (xhr.status == 500) { //handle error } else { //handle error } } });

Abort / Cancel jQuery Ajax Request Example

<script type="text/javascript" src="jquery-min.js"></script>
<script type="text/javascript">
    $(document).ready(function() {
        var $xhr = $.ajax({
            url: "search.php",
            type: "POST",
            data: {id: 1, name: "Pritom Kumar"},
            beforeSend: function(xhr){
                xhr.setRequestHeader('X-Test-Header1', 'test-value1');
                xhr.setRequestHeader('X-Test-Header2', 'test-value2');
            },
            dataType: "json"
        }).done(function(data, textStatus, jqXHR) {

        }).fail(function(jqXHR, textStatus, errorThrown) {
            alert("Failed With Reason=" + textStatus);
        });
        setTimeout(function() {
            $xhr.abort();
        }, 100);
    });
</script>

Angularjs ajax get or post method example from controller

app.controller('TestController', function($scope, $http) {
    $scope.name = "Pritom Kumar";
    $scope.posts = ["a", "b"];
    
    $http.post('lists_json', {id: 1, name: $scope.name}).
    success(function(response, status, headers, config) {
        console.log("Success=" + response);
    }).
    error(function(response, status, headers, config) {
        console.log("Error=" + response);
    });
    
    $http.get('lists_json?id=1&name='+$scope.name+"&list="+$scope.posts).
    success(function(response, status, headers, config) {
        console.log("Success=" + response);
    }).
    error(function(response, status, headers, config) {
        console.log("Error=" + response);
    });
});

jQuery post call using ajax

jQuery.ajax({
    type: "POST",
    url: "http://domain.com/save_form_data",
    data: jQuery("form").serializeArray(),
    success: function(data) {
        console.log(data);
        alert("Success");
    },

    error: function() {

       alert("Error occurred."); 

    }
});