function call with argument in jquery

Question

I have included an external javascript file whose contents are:

function getTopNews(){
  $.ajax({
    url: 'http://api.feedzilla.com/v1/categories/26/articles.json',
    type: 'GET',
    dataType: 'json',

    success: function(response){
        alert("Got top news!");
    },

    error: function(){
        alert("There was an error!");
    },

    complete: function(){
        alert('Executed');
    }
  });
}

Now the above javascript file is included in another file where I have written this code:

$(document).ready(getTopNews);  // works

Now suppose my getTopNews is defined like getTopNews(var newsId), then how should I call it? I have tried following and it does not work:

$(document).ready(getTopNews(26));  // does not work

$(document).ready(fucntion(){  // does not work
  $(this).getTopNews(26)
});

Both of these do not work for me. Help!

You have a typo (fucnition), maybe that's why it's not working? Did you check the browser console for errors? — bfavaretto
– bfavaretto, Commented Jun 23, 2013 at 21:10
@bfavaretto: Good one, but that typo is here, not in actual code :D — kunal18
– kunal18, Commented Jun 23, 2013 at 21:17
The tip about the browser console is still valid though. Always check that, it will catch all syntax errors like getTopNews(var newsId). — bfavaretto
– bfavaretto, Commented Jun 23, 2013 at 21:19

Xion · Accepted Answer · 2013-06-23 21:00:45Z

4

What abt this ? getTopNews isnt an object of document so it wont come under $(this) :

$(document).ready(function(){
  getTopNews(26);
});

edited Jun 23, 2013 at 21:00

Xion

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answered Jun 23, 2013 at 20:59

krishwader

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6 Comments

krishwader Over a year ago

@stalin any console erros?

A. Wolff Over a year ago

getTopNews function have to be defined before you call it. If it's the case, this answer works for sure.

nnnnnn Over a year ago

"getTopNews isnt an object of document so it wont come under $(this)" - Even if it was a property of document it still wouldn't be accessible from $(this), because $(this) returns a jQuery object, not document.

kunal18 Over a year ago

I am including the js containing getTopNews() function before $(document).ready(), it works without argument but not with argument.

kunal18 Over a year ago

@passionateCoder: you are correct. this is the correct way. 'var' was the problem

|

nnnnnn · Accepted Answer · 2013-06-23 21:16:01Z

3

"Now suppose my getTopNews is defined like getTopNews(var newsId)"

Then what you'd have is a syntax error and the code wouldn't work. Remove the var:

function getTopNews(newsId) {
   // your code here
}

To call that on ready, do this:

$(document).ready(function(){
  getTopNews(26);
});

Note that in your code when you did something similar you had a typo on this line:

$(document).ready(fucntion(){  // does not work

...where you spelled function as fucntion.

Note that both problems should've been reported in your browser's console.

edited Jun 23, 2013 at 21:16

answered Jun 23, 2013 at 21:10

nnnnnn

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1 Comment

nnnnnn Over a year ago

Thanks @bfavaretto, I didn't notice that at first.

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