jQueryの繰延公式例：その後、（）私は思っ

Question

jQuery: deferred.then()

'defer.resolveは（5）' の後に 'filtered.done（）' 正しいのですが、両方とも同じ結果を持っている理由。

var filterResolve = function() { 
    var defer = $.Deferred(), 
    filtered = defer.then(function(value) { 
     return value * 2; 
    }); 

    defer.resolve(5); 

    filtered.done(function(value) { 
    $("p").html("Value is (2*5 =) 10: " + value); 
    }); 
}; 

---

var filterResolve = function() { 
    var defer = $.Deferred(), 
    filtered = defer.then(function(value) { 
     return value * 2; 
    }); 

    filtered.done(function(value) { 
    $("p").html("Value is (2*5 =) 10: " + value); 
    }); 

    defer.resolve(5); 
}; 

Answer 1

var defer = $.Deferred(), 
 
    filtered = defer.then(function(value) { 
 
     return value * 2; 
 
    }); 
 

 
defer.resolve(5); 
 
    
 
$("button").on("click", function(){ 
 
    filtered.done(function(value) { 
 
    $("p").html("Value is (2*5 =) 10: " + value); 
 
    }); 
 
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 

 
<button>Filter Resolve</button> 
 
<p></p>