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Retain cycle on `self` with blocks
...ink it's relevant to a lot of Objective-C programmers who are getting into blocks.
9 Answers
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How to make a website secured with https
...or secure coding in mind (here is a good intro: http://www.owasp.org/index.php/Secure_Coding_Principles ), otherwise all you need is a correctly set up SSL certificate.
Is SSL and https one and the same..
Pretty much, yes.
Do I need to apply with someone to get
some license or something....
How to construct a REST API that takes an array of id's for the resources
...ry parameters will be combined into an array. With the above query string, PHP happens to tell you that id equals [1, 2, 3], but Ruby on Rails tells you it equals 3, and other frameworks may also act differently, e.g. saying id equals 1. URLs like …?id=1,2,3 avoid this potential for confusion.
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What happens if a finally block throws an exception?
If a finally block throws an exception, what exactly happens?
11 Answers
11
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Assign a variable inside a Block to a variable outside a Block
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You need to use this line of code to resolve your problem:
__block Person *aPerson = nil;
For more details, please refer to this tutorial: Blocks and Variables
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C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...Segment fault 之永远的痛》(http://www.linuxforum.net/forum/gshowflat.php?Cat=&Board=program&Number=193239&page=2&view=collapsed&sb=5&o=all&fpart=1&vc=1)
在主题帖子里头，作者这么写道：
写程序好多年了，Segment fault 是许多C程序员头疼的提示。指针...
Select last row in MySQL
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Make it simply use: PDO::lastInsertId
http://php.net/manual/en/pdo.lastinsertid.php
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scala vs java, performance and memory? [closed]
... No, I might not. This sort of thing is a fundamental building block for many algorithms, and to see it present at such a low level in the language and standard libraries (the same standard libraries that all programs will use, not just typical ones) is evidence that you're already close...
Blocks and yields in Ruby
I am trying to understand blocks and yield and how they work in Ruby.
10 Answers
10
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Get last n lines of a file, similar to tail
...ours. Makes no assumptions about line length. Backs through the file one block at a time till it's found the right number of '\n' characters.
def tail( f, lines=20 ):
total_lines_wanted = lines
BLOCK_SIZE = 1024
f.seek(0, 2)
block_end_byte = f.tell()
lines_to_go = total_lines...