CODEWITHSUNDEEP
jquery
user973063
user973063

Reputation: 31

Call function in document.ready

Can I call function in document.ready(function(){ }) by using "onclick" event...?

      document.ready(function(){
      function MyFunction()
                {
                  alert("Hello");
                }
                });

<a href="#" onclick="javascript:MyFunction()"></a>

Upvotes: 3

Views: 5525

Answers (3)

jfriend00
jfriend00

Reputation: 707158

No, you cannot do that becuase the onclick handler uses eval() to evaluate the javascript expression and eval() expects MyFunction() to be a global function and when it is defined inside the .ready() handler, it is not a global function so eval() does not find it.

You can make MyFunction be a global function by defining it in the ready() handler like this:

window.MyFunction = function() {...}

But, it would be better to just use jQuery's event handlers and not specify the event handler in the HTML.

<a id="myLink" href="#">Click Me</a>

$(document).ready(function() {
    $("#myLink").click(function() {
        alert("Hello");
    });
});

Upvotes: 10

jamesmortensen
jamesmortensen

Reputation: 34038

If you are trying to keep your code out of the global scope, you can do something like this:

var myApp = {

    myFunction: function() {
        alert("Hello");
    }

};


$(document).ready(function() {
    myApp.myFunction();
});

However, you will not be able to call any functions defined within an anonymous function because they are both out of scope and inaccessible.

So in short, you cannot call a function from outside of document.ready if that function is defined within the document.ready.

Upvotes: 0

Corbin
Corbin

Reputation: 33437

The "javascript:" is unnecessary. And yes, you can. As long as you define it in a scope that's accessible (in other words, the global scope).

function example() { console.log("Called!"); }

$(document).ready(function() { /* code */ example(); /* code */ });

<a href="#" onclick="example();">Example</a>

Upvotes: 1

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