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Important ques: setHeader.addHeader

 
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if there exists already a header by name and value :
MyHeader: mydata
Now what will be the result of following code on it?



Ans is mydata3,mydata ...Please explain how?
 
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First of all, you should write where have you found this question.

Anyway:



when you are using setHeader you are deleting the old contents of the header, and you are puting into it a new value.
when you are using addHeader you are NOT deleting old contents, you just add a new value to this header.
 
amarkirt saroay
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Thanks,i took this question from HFJS mock exam.
 
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So the real question is:
If you have a Header with multiple values (as occurs after multiple calls to addHeader),
does setHeader replace ALL the existing values.

Good question.
 
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the spec is clear about setHeader "the values are cleared and replaced with the new value"

therefore all values will be cleared
 
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