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up vote 2 down vote favorite
1

i have an array called items=["apple","mango","cherry"];

i wonder how i can load the array data from text file instead of declaring it?the text file data is stored like this "apple","mango","cherry",...

furthermore, how to add to the end of this this text file an item for example add "orange" after "cherry"?

items=["apple","mango","cherry"];
    if (items.indexOf(myVariable2) == -1) {

     // not found, so output it
       t++;

    document.myform3.outputtext3.value +=myVariable2+"\n";

    }
share|improve this question
1  
Where is your text file stored? –  Lee Taylor Jul 27 '13 at 19:34
    
So is text file local or on a server? Your question is missing this important part... –  A. Wolff Jul 27 '13 at 19:39
    
First If it is possible, store your data as JSON. Then, follow this to load the file content and parse it to JSON. jQuery Reference. –  Hashem Qolami Jul 27 '13 at 19:41

3 Answers 3

up vote 2 down vote

With jQuery you can do something like this

  $.get("textFile.txt", function(data) {
      var items = data.split(',');
  });

You may need something like this though

var items = data.replace(/"/g, '').split(',');

This is a start.

If this is a user input file then you may need to upload it before you work with it.

share|improve this answer
    
you have to use regex with replace() or only first occurence will be replaced –  A. Wolff Jul 27 '13 at 19:41
    
Thanks @roasted... –  Connor Jul 27 '13 at 19:42
    
connor this script is only run by me i just want to do away to make life easier for myself instead of typing new data to end array manually!i was just looking for way to read and write from txt file . may be i load data from textarea instead but don't know how ! –  user1788736 Jul 27 '13 at 20:04
    
Well, from what you just said, this looks like what you need –  Connor Jul 27 '13 at 20:06
up vote 0 down vote

Sorry, but I don't believe it's quite that simple. Browsers restrict access to local drives (and to server drives) for security reasons.

but one way to access the text file using jquey would be

jQuery.get('http://localhost/foo.txt', function(data) {
    var myvar = data;
});

Regards

Shiva

share|improve this answer
    
thanks for reply. so you think it is not possible to load from txt file ? how about loading from cookie file or textarea? myvar can be used outside jquery.get ?how? –  user1788736 Jul 27 '13 at 19:41
up vote 0 down vote 
 var file = event.target.file;
 var reader = new FileReader();
 var txt=reader.readAsText(file);
 var items=txt.split(",");
share|improve this answer
    
Where's the bit that loads the data from a text file? –  Lee Taylor Jul 27 '13 at 19:33
    
thanks for reply. that is the question how to load data from text file to array? –  user1788736 Jul 27 '13 at 19:36
    
Thought you had covered that part, using <input type="file"/> ? –  rps Jul 27 '13 at 19:36

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