query: Having trouble using .isupper()
positive_passages.docid: 143939
positive_passages.text: How do you use: isalnum, isdigit, isupper to test each character of a string?
negative_passages.docid: 79604
negative_passages.text: How does one correctly use a semicolon?
negative_passages.docid: 40999
negative_passages.text: Using \in with uppercase letters does not look good
negative_passages.docid: 33772
negative_passages.text: Is there any difference in equals and == for String variables?
negative_passages.docid: 110451
negative_passages.text: How to check if a string is numeric?
negative_passages.docid: 84741
negative_passages.text: Using the && operator in an if statement
negative_passages.docid: 108446
negative_passages.text: How to perform case-insensitive sorting in JavaScript?
negative_passages.docid: 153856
negative_passages.text: String comparison and String interning in Java
negative_passages.docid: 21355
negative_passages.text: How do I convert a String to an int in Java?
negative_passages.docid: 12886
negative_passages.text: How can I convert a string to boolean in JavaScript?
negative_passages.docid: 79128
negative_passages.text: \uppercase in \newcommand
negative_passages.docid: 145046
negative_passages.text: comparing float/double values using == operator
negative_passages.docid: 38401
negative_passages.text: When should I use  or >()?
negative_passages.docid: 150230
negative_passages.text: Is there a C# case insensitive equals operator?
negative_passages.docid: 72909
negative_passages.text: What does the |= operator do in Java?
negative_passages.docid: 4419
negative_passages.text: "is" operator behaves unexpectedly with integers
negative_passages.docid: 20667
negative_passages.text: Using OR comparisons with IF statements