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JavaScript Reference » Javascript Properties » expando 
'expando' Syntax and Note

Note:

Read and write property. 
Can custom properties be added to object. 
    
Syntax:
    
objectName.expando = value
The following example illustrates how to create a custom counter property:
document.expando = true// instruct the browser to "expand" the properties array
document.counter = 0// introduce a new property

    

      
      
Related examples in the same category
1. 'expando' Example
2. 'expando' Possible Values
3. 'expando' is applied to
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