CODEWITHSUNDEEP
jqueryjquery-deferred
flienteen
flienteen

Reputation: 234

jQuery Deferred resolve() don't work

What i'm doing wrong?

function test() 
{
    var d = $.Deferred();
    var name=prompt("Please enter your name","Harry Potter");
    if (name=="aa") 
        d.resolve(); 
    else
        setTimeout(test, 1000);

    return d.promise();
}
test().done(function() { alert("It's Ok!"); });

Upvotes: 1

Views: 7402

Answers (1)

Scoobler
Scoobler

Reputation: 9719

The reason it doesn't work on the second name input is, you are calling a function test(), returning the deferred object which then add's the ability to you original call to test() allow access to callback methods like .then(), .fail() and .done().

However, if you do not get the input you wan't you are calling the function test() again, which creates a NEW deferred object. Thus, the original call to test() which you have added the done() callback to will never receive the callback.

Change it to:

var d = $.Deferred();

function test() 
{
    var name=prompt("Please enter your name","Harry Potter");
    if (name=="aa") 
        d.resolve();
    else
        setTimeout(test, 1000);
    return d.promise();
}

test().done(function() { alert("It's Ok!"); });

This was you are referencing the SAME deferred object and not creating a new one each time the function test() runs.

See it working here

Upvotes: 4

Related Questions