I find the following code in some file:
var node = <title />;
node.@name = "titleName";
The node is
<title>
<name>titleName<name/>
</title>
So What's the .@
operator meaning?
This looks like ECMAScript for XML (E4X), an extension for ECMAScript (on which JavaScript is based). It was standardized in ECMA-357 , but it was not widely adopted by the major browser vendors, and was dropped from later ECMAScript standards. However, it is still supported by some engines, including ActionScript 3.0 .
It's used for working with XML more gracefully. The .@
syntax references an XML attribute within an XmlNode
, and in this case, node.@name = "titleName"
sets the attribute name
on node
to the value "titleName"
.
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