How can I ensure that the appropriate 'this' is accessed within a callback function for an AJAX request?

When working with a callback function, I am having trouble accessing this. Instead, it seems to be pointing to the AJAX object rather than the object that initially invoked the onClickEmail function. I attempted to store a reference in a variable called that, but this did not resolve the issue.

Is there something wrong with my approach here?

onClickEmail() {
  var that = this;
  var hey = "xyz" 
  $.ajax({
    url: 'http://rest.learncode.academy/api/test123/tweets'
  }).then(function(response) {
    console.log(hey);
    console.log(that);
  });
}

My main question is why I can access the value of the hey variable, but that remains undefined.

Answer №1

this - in this context, the variable refers to the object that owns the function. Explore using bind or experiment with it further

var currentObj = this;
onClickEmail(){
    $.ajax({
            url: 'http://rest.learncode.academy/api/test123/tweets'
        }).then(function(response) {
            something = currentObj;
        });
}

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