Posted in javascript
7575
12:19 pm, May 25, 2021
 

loop through a complex object json javascript

just a note to say that a complex object is an object with more than one nested object in it for example

just kinda playing around with this one to get the handle on objects and how to access them

Console

 

Javascript

/* Function to load json file or url - load json with javascript no jquery */
function load_json(path, callback) {
    var httpRequest = new XMLHttpRequest();
    httpRequest.onreadystatechange = function() {
        if (httpRequest.readyState === 4) {
            if (httpRequest.status === 200) {
                var data = JSON.parse(httpRequest.responseText);
                if (callback) callback(data);
            }
        }
    };
    httpRequest.open('GET', path);
    httpRequest.send(); 
}

// load_json on external file
load_json('https://kruxor.com/js/test_complex_object.json', function(data){
    // return the data so we know what we are looping through
	console.log(data);
  for(var key in data) {
      var value = data[key];
      if(typeof value == 'object') {
          if(value instanceof Array) {
              // an array. loop through children
              for(var i = 0; i < value.length; i++) {
                  var item = value[i];
                  console.log(item);
              }
          } else {
              // not an array?
            console.log(item);
          }
      } else {
          // return the item?
            console.log(value);
      }
  }
  
});

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