Enumerable.count Method

Returns the number of elements in a sequence. If "predicate" is provided, returns a number that represents how many elements in the specified sequence satisfy a condition.
 
 
Static This method is static.

Parameters

source

Type: IEnumerable
A sequence that contains elements to be tested and counted.
predicate

Type: Function - May be null
A function to test each element for a condition.
Optional: True

Return Value


Type: Number
A number that represents how many elements in the sequence satisfy the condition in the predicate function. 
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