query: which is better from performance point of view - "is" or "as" cast
positive_passages.docid: 15182
positive_passages.text: Casting vs using the 'as' keyword in the CLR
negative_passages.docid: 91771
negative_passages.text: "Being" or "to be"?
negative_passages.docid: 16038
negative_passages.text: C# 'is' operator performance
negative_passages.docid: 121656
negative_passages.text: Difference between a gerund acting as subject and an infinitive acting as a subject?
negative_passages.docid: 154794
negative_passages.text: “Are” vs. “is” after “parents and the family”
negative_passages.docid: 16124
negative_passages.text: Use of "If there is/are"
negative_passages.docid: 87638
negative_passages.text: Which is better: ... or ...
negative_passages.docid: 149555
negative_passages.text: What are the differences among these phrases? as long as VS so long as VS as far as VS so far as
negative_passages.docid: 83168
negative_passages.text: The difference between "as" "when" and "while"
negative_passages.docid: 109074
negative_passages.text: "You are" vs. "you're" — what is the difference between them?
negative_passages.docid: 65998
negative_passages.text: Should we use on, or in?
negative_passages.docid: 148841
negative_passages.text: when should we use "being"
negative_passages.docid: 13977
negative_passages.text: Is "considered" always followed by "as"?
negative_passages.docid: 26782
negative_passages.text: "will have become" vs "are"
negative_passages.docid: 118503
negative_passages.text: Which is more correct:  OR
negative_passages.docid: 82338
negative_passages.text: Meaning of "as" in following sentence
negative_passages.docid: 128094
negative_passages.text: Using "was" vs "were" for "as if"