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The sum function returns a number that is the sum of the numeric values of each node in a given node-set.

Syntax 

sum( node-set )

Arguments

node-set
The node-set to be evaluated. Each node in this node-set is evaluated as if it were passed to the number() function, and a sum of the resulting numbers is returned.

Returns

A number.

Notes

(None)

Defined

XPath 1.0 4.3

Gecko support

Supported.

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 Contributors to this page: Sheppy, Mgjbot, Shoot, Gopireddy, Ptak82, Jonnyq
 Last updated by: Sheppy,