enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. RegEx for matching "A-Z, a-z, 0-9, _" and "." - Stack Overflow

   stackoverflow.com/questions/1721602

   93. ^[A-Za-z0-9_.]+$. From beginning until the end of the string, match one or more of these characters. Edit: Note that ^ and $ match the beginning and the end of a line. When multiline is enabled, this can mean that one line matches, but not the complete string. Use \A for the beginning of the string, and \z for the end.

3. Why would you use Expression<Func<T>> rather than Func<T>?

   stackoverflow.com/questions/793571

   Conceptually, Expression<Func<T>> is completely different from Func<T>. Func<T> denotes a delegate which is pretty much a pointer to a method and Expression<Func<T>> denotes a tree data structure for a lambda expression. This tree structure describes what a lambda expression does rather than doing the actual thing.

4. Regular expression "^ [a-zA-Z]" or " [^a-zA-Z]" - Stack Overflow

   stackoverflow.com/questions/2790813

   Yes, the first means "match all strings that start with a letter", the second means "match all strings that contain a non-letter". The caret ("^") is used in two different ways, one to signal the start of the text, one to negate a character match inside square brackets. answered May 7, 2010 at 18:31.

5. Combining paste () and expression () functions in plot labels

   stackoverflow.com/questions/4973898

   87. An alternative solution to that of @Aaron is the bquote() function. We need to supply a valid R expression, in this case LABEL ~ x^2 for example, where LABEL is the string you want to assign from the vector labNames. bquote evaluates R code within the expression wrapped in .( ) and subsitutes the result into the expression. Here is an example:

6. Powershell : Use a Select-Object expression with a string

   stackoverflow.com/questions/16920689

   For some scripts, i need to have an output composed of calculated properties. For example, for a list of ip addresses in ip.txt, i want to know if they respond to ping. So i try the following comm...

7. Combining two expressions (Expression<Func<T, bool>>)

   stackoverflow.com/questions/457316

   Starting from .NET 4.0, there is the ExpressionVisitor class which allows you to build expressions that are EF safe. public static Expression<Func<T, bool>> AndAlso<T>(. this Expression<Func<T, bool>> expr1, Expression<Func<T, bool>> expr2) {. var parameter = Expression.Parameter(typeof (T));

8. What is the difference between an expression and a statement in...

   stackoverflow.com/questions/4728073

   An expression is any reference to a variable or value, or a set of variable(s) and value(s) combined with operators. For example: a = b * 2; This statement has four expressions in it: 2 is a literal value expression. b is a variable expression, which means to retrieve its current value.

9. Algebraic Expression | Definition, Operations & Examples

   study.com/academy/lesson/expressing-relationships-as-algebraic-expressions.html

   The most commonly used ones are x, y, z, a, b, c, m, and n. The variables are used to convert verbal expressions into algebraic expressions. Single variable expressions use one variable, while ...

10. function - Expected expression error in C - Stack Overflow

    stackoverflow.com/questions/22764426

    I bet the compiler asks you for an expression in some place where you write a function declaration with a missing semicolon. //calling the function input input(int x) //calling the function validate validate(int y) Neither of these is a function call.

11. SQL Error: ORA-00936: missing expression - Stack Overflow

    stackoverflow.com/questions/19507396

    1 select ename as name, 2 sal as salary, 3 dept,deptno, 4 from (TABLE_NAME or SUBQUERY) 5 emp, emp2, dept 6 where 7 emp.deptno = dept.deptno and 8 emp2.deptno = emp.deptno 9* order by dept.dname from (TABLE_NAME or SUBQUERY) * ERROR at line 4: ORA-00936: missing expression` select ename as name, sal as salary, dept,deptno, from (TABLE_NAME or ...