post data javascript code example

Example 1: javascript send post

var xhr = new XMLHttpRequest();
xhr.open("POST", yourUrl, true);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify({
    value: value
}));

Example 2: $.post javascript

//$.post with jQuery

$.post(
  "path/to/your/php/file", 
  {
    param1: "Value",
    param2: "Value"
},
  function(data) {
  //Callback here
  }
);

Example 3: js make post request

var xhr = new XMLHttpRequest();
// we defined the xhr

xhr.onreadystatechange = function () {
    if (this.readyState != 4) return;

    if (this.status == 200) {
        var data = JSON.parse(this.responseText);

        // we get the returned data
    }

    // end of state change: it can be after some time (async)
};

xhr.open('GET', yourUrl, true);
xhr.send();