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Pass a JavaScript function as parameter
How do I pass a function as a parameter without the function executing in the "parent" function or using eval() ? (Since I've read that it's insecure.)
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Getting the array length of a 2D array in Java
I need to get the length of a 2D array for both the row and column. I’ve successfully done this, using the following code:
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Syntax behind sorted(key=lambda: …)
I don't quite understand the syntax behind the sorted() argument:
9 Answers
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Is there an SQLite equivalent to MySQL's DESCRIBE [table]?
I'm just getting started learning SQLite . It would be nice to be able to see the details for a table, like MySQL's DESCRIBE [table] . PRAGMA table_info [table] isn't good enough, as it only has basic information (for example, it doesn't show if a column is a field of some sort or not). Does SQL...
What is the difference between single-quoted and double-quoted strings in PHP?
I'm a little confused why I see some code in PHP with string placed in single quotes and sometimes in double quotes.
12 Ans...
throwing exceptions out of a destructor
Most people say never throw an exception out of a destructor - doing so results in undefined behavior. Stroustrup makes the point that "the vector destructor explicitly invokes the destructor for every element. This implies that if an element destructor throws, the vector destruction fails... The...
how to set cursor style to pointer for links without hrefs
I have a lot of <a> html tags without the href attribute for making onclick javascript calls. These links do not have a pointer style of cursor. They have text style cursor.
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Javascript equivalent of Python's zip function
Is there a javascript equivalent of Python's zip function? That is, given multiple arrays of equal lengths create an array of pairs.
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What Makes a Method Thread-safe? What are the rules?
Are there overall rules/guidelines for what makes a method thread-safe? I understand that there are probably a million one-off situations, but what about in general? Is it this simple?
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When do I need to use a semicolon vs a slash in Oracle SQL?
We have been having some debate this week at my company as to how we should write our SQL scripts.
6 Answers
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