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PHP Fatal error: Using $this when not in object context
...
@Sarfraz No offense, but it is still wrong. You can call an instance method with ::. It is against E_STRICT, but it does work as long as the method body does not reference the instance scope, e.g. uses $this. Also, self::foo will not point to $this->foo. It references a clas...
Subscripts in plots in R
... How to load "2" from the variable? I have a loop and need to plot x_[1] x_[2] x_[3] ...
– 0x2207
Dec 11 '14 at 11:38
6
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动态追踪（Dynamic Tracing）技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...试。它们虽然做的是类似的事情，但实现代码和相应的 API 都完全不同（这里值得一提的是，LLVM 世界的 LLDB 工具也提供了类似的 Python 编程支持，而那里的 Python API 又和 GDB 的不相兼容）。
我们当然也可以用 GDB 对活体程序进行...
Good ways to sort a queryset? - Django
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Ulysses Simpson (474)
Harry Truman (471)
And now the combined order_by call:
>>> myauths = Author.objects.order_by('-score', 'last_name')[:5]
>>> for x in myauths: print x
...
James Monroe (487)
Ulysses Simpson (474)
Harry Truman (471)
Benjamin Harrison (467)
Gerald Rudolph (4...
Is there any difference between DECIMAL and NUMERIC in SQL Server?
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They are the same. Numeric is functionally equivalent to decimal.
MSDN: decimal and numeric
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What are fail-safe & fail-fast Iterators in Java
...(This was the behavior of some standard implementations of the Enumeration API in early versions of Java.)
... and are they different from the iterator we use for collection.
No. These are properties of the iterators implemented by standard Collection types; i.e. they are either "fail fast" ...
How can I perform a `git pull` without re-entering my SSH password?
...use the key!
Neither do I! Thankfully, there’s a nifty little tool called
ssh-agent that can save your passphrase securely so you don’t have
to re-enter it. If you’re on OSX Leopard or later your keys can be
saved in the system’s keychain to make your life even easier. Most
linu...
How to extract the hostname portion of a URL in JavaScript
... ahve been searching for method to extract the of the url I'm getting from api. It was so simple. I had only read it in url with new URL. Thank you.
– Nodirabegimxonoyim
Jan 22 '19 at 10:06
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What is 'Currying'?
...like the add(3, 4) statement. The second statement defines a new function called add3 that will add 3 to its argument. This is what some people may call a closure. The third statement uses the add3 operation to add 3 to 4, again producing 7 as a result.
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Generating random strings with T-SQL
... that generates object names in a reproducible manner:
alter procedure usp_generateIdentifier
@minLen int = 1
, @maxLen int = 256
, @seed int output
, @string varchar(8000) output
as
begin
set nocount on;
declare @length int;
declare @alpha varchar(8000)
, @digit...