how to send json data in ajax request using jquery code example

Example 1: send json post ajax javascript

$.ajax({
    url: 'users.php',
    dataType: 'json',
    type: 'post',
    contentType: 'application/json',
    data: JSON.stringify( { "first-name": $('#first-name').val(), "last-name": $('#last-name').val() } ),
    processData: false,
    success: function( data, textStatus, jQxhr ){
        $('#response pre').html( JSON.stringify( data ) );
    },
    error: function( jqXhr, textStatus, errorThrown ){
        console.log( errorThrown );
    }
});

Example 2: How to pass json format data on ajax call

BY LOVE

1- Pass the JSON format data in this way
data: { "str1": "Love", "str2": "Singh" }
2- You can use JSON.Stringfy function also
var employee = { Id: 101, Name: "Love singh" };  
data: JSON.stringify(employee)