CODEWITHSUNDEEP
javascriptjquerybackbone.js
Devalor
Devalor

Reputation: 55

return $.extend and this in backbone

I'm working on a component architectural project and I saw this piece of code.

clone : function() {
    return $.extend(true, {}, this);
}

What does this even means? Pass this into an object using $.extend?

Upvotes: 0

Views: 55

Answers (1)

Flyer53
Flyer53

Reputation: 764

It seems like clone is a method of an object that simply creates a clone of the original object. You could say it's a way to create a real copy of an object, not just a reference to it. So this refers to the object the method belongs to.

var obj = {
  one: 1,
  two: 2,
  three: 3,
  clone: function() {
    return $.extend(true, {}, this);
  }
};

var clone = obj.clone();

obj.one = "one";

console.log(obj);
console.log(clone);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Upvotes: 2

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