Tuesday, 26 July 2011

JavaScript For...In Statement

The for...in statement loops through the properties of an object.


for (variable in object)
//code to be executed

Note: The code in the body of the for...in loop is executed once for each property.


Looping through the properties of an object:

<script type="text/javascript">

var person={fname:"prince",lname:"thomas",age:30};

for (var property in person)
document.write(property + ": " + person[property] + "<br>");

The output will be

fname: prince
lname: thomas
age: 30

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