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E4X (ECMAScript For XML) MCQs

What will be the output of the following code snippet?
var xml = ;
xml.appendChild("hello");
Xml.appendChild(" world");
xml.normalize();
alert(xml.children().length());

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E4X (ECMAScript For XML) MCQs

What will be the output of the following code snippet?var xml = ;xml.appendChild("hello");Xml.appendChild(" world");xml.normalize();alert(xml.children().length());

What will be the output of the following code snippet?
var xml = ;
xml.appendChild("hello");
Xml.appendChild(" world");
xml.normalize();
alert(xml.children().length());