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Getting “bytes.Buffer does not implement io.Writer” error message
...nt, err error)
}
It's b *Buffer, not b Buffer. (I also think it is weird for we can call a method by a variable or its pointer, but we can't assign a pointer to a non-pointer type variable.)
Besides, the compiler prompt is not clear enough:
bytes.Buffer does not implement io.Writer (Write method...
How to tell when UITableView has completed ReloadData?
I am trying to scroll to the bottom of a UITableView after it is done performing [self.tableView reloadData]
19 Answers
...
What does the explicit keyword mean?
...rameter to convert from one type to another in order to get the right type for a parameter.
Here's an example class with a constructor that can be used for implicit conversions:
class Foo
{
public:
// single parameter constructor, can be used as an implicit conversion
Foo (int foo) : m_foo (foo)...
Get list of passed arguments in Windows batch script (.bat)
...
dancavallaro has it right, %* for all command line parameters (excluding the script name itself). You might also find these useful:
%0 - the command used to call the batch file (could be foo, ..\foo, c:\bats\foo.bat, etc.)
%1 is the first command line pa...
How can I delete multiple lines in vi?
... "Ex mode"). In that context :5d would remove line number 5, nothing else. For 5dd to work as intended -- that is, remove five consequent lines starting at the cursor -- enter it in normal mode and don't prefix the commands with :.
...
cannot convert data (type interface {}) to type string: need type assertion
...
According to the Go specification:
For an expression x of interface type and a type T, the primary expression x.(T) asserts that x is not nil and that the value stored in x is of type T.
A "type assertion" allows you to declare an interface value contains a ...
Automating “enter” keypresses for bash script generating ssh keys
...
echo -e "\n\n\n" | sshkeygen -t rsa is not working for me, can you try it yourself? It pass only first enter. But on other, simple script it works.
– Sławosz
Sep 8 '10 at 10:00
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Typedef function pointer?
...a name to a type.
You use it the same way you would use the original type, for instance
typedef int myinteger;
typedef char *mystring;
typedef void (*myfunc)();
using them like
myinteger i; // is equivalent to int i;
mystring s; // is the same as char *s;
myfunc f; ...
How do I make a redirect in PHP?
...function to send a new HTTP header, but this must be sent to the browser before any HTML or text (so before the <!DOCTYPE ...> declaration, for example).
header('Location: '.$newURL);
2. Important details
die() or exit()
header("Location: http://example.com/myOtherPage.php");
die();
Why you ...
When should I use semicolons in SQL Server?
... was never used within Transact-SQL. Indeed, it was possible to code T-SQL for years without ever encountering a semicolon.
Usage
There are two situations in which you must use the semicolon. The first situation is where you use a Common Table Expression (CTE), and the CTE is not the first stateme...