Advanced Search

Grab Text from a File Ajax

/ Published in: JavaScript
Save to your folder(s)
Very basic grab a line of text from a file then display it in an alert box. Uses other functions for loading prepareLinks() and creating the request.

Expand | Embed | Plain Text

Copy this code and paste it in your HTML 
  1. function basicAJAX(file) {//pass a variable into the function
  2. 	var request = getHTTPObject();
  3. 	if(request){
  4. 		request.onreadystatechange = function() {
  5. 			displayResponse(request);
  6. 		};
  7. 		request.open("GET", file, true);//this is where the var is picked up, the location
  8. 		request.send(null);
  9. 	}
  10. }
  11. function displayResponse(request) {
  12. 	if(request.readyState == 4){//waits for the complete before execute.
  13. 		if(request.status == 200 || request.status == 304){
  14. 			alert(request.responseText);//this is what happens once complete
  15. 			//for XML	
  16. 			//var data = request.responseXML;//the while document is now in this variable. Travesrse it using the DOM.
  17. 			//createInfo(data);//function runs and references the DOM
  18. } else {
  19. 			alert("Something Broke!");
  20. 		}
  21. 	}
  22. }
  23. function prepareLinks(){
  24. 	if(!document.getElementsByTagName) return false;
  25.  
  26. 	var allLinks = document.getElementsByTagName("a");
  27. 	for(i=0;i<allLinks.length;i++){
  28. 		allLinks[i].onclick = function() {
  29. 			basicAJAX(this.href);
  30. 			return false;
  31. 		} 
  32. 	}
  33. }

Report this snippet


Comments

RSS Icon Subscribe to comments

You need to login to post a comment.