10 examples of 'how can we cancel the xmlhttprequest in ajax' in JavaScript

93
cancel() {
94
  this.options.debug && debug("XHR.abort");
95
  this.xhr.abort();
96
}

53
cancel() {
54
  if (this.xhr && this.sent) {
55
    this.xhr.abort()
56
  }
57
}

62
function cancel() {
63
  if (success.value) {
64
    return;
65
  }
66
67
  cancelled.value = true;
68
  if (controller) {
69
    controller.abort();
70
  }
71
}

151
cancel() {
152
  if (!this._request) return;
153
  this._request.abort();
154
}

151
function _setCancellationForAjaxCall(ajax) {
152
    /* request in-flight; aborting is cancelling this request */
153
    state.currentRequestAbort = function() { ajax.abort(); };
154
    /* once the request finishes, there's nothing to abort.
155
     * this needs to be the 1st callback, so that later callbacks can
156
     * override this */
157
    ajax.finally(function() {
158
        state.currentRequestAbort = NOOP_ABORT;
159
    });
160
}

120
abort(): void {
121
  this.xhr_.abort();
122
}

62
var cancel = function cancel() {
63
  if (!activityRequest) {
64
    alert('There are no any pending activity request.');
65
    return;
66
  }
67
68
  activityRequest.postError('canceled');
69
  activityRequest = null;
70
71
  // close app, currently useless,
72
  // see https://bugzilla.mozilla.org/show_bug.cgi?id=789392
73
  window.close();
74
};

109
cancel(): boolean {
110
  if (this.controller) {
111
    this.controller.abort();
112
    return true;
113
  }
114
  return false;
115
}

227
public abort(): void {
228
    if (this._xhr) {
229
        this._xhr.abort();
230
    }
231
}

11
function browserAbort(request) {
12
  var xhr = requestsUnderway[request.id];
13
  if (!xhr) return;
14
  xhr.abort();
15
  delete requestsUnderway[request.id];
16
}