大约有 11,700 项符合查询结果（耗时：0.0222秒） [XML]
Why should I prefer single 'await Task.WhenAll' over multiple awaits?
...will be lost. I.e. if t2 and t3 throws exception, only t2 will be catched; etc. The subsequent tasks exceptions will go unobserved.
Where as in the WhenAll - if any or all of the tasks fault, the resulting task will contain all of the exceptions. The await keyword still always re-throws the first ...
In Visual Studio C++, what are the memory allocation representations?
...00001 0xDDDDDDDD 0xFEEEFEEE Type (0=Freed, 1=Normal, 2=CRT use, etc)
0x00320FF8 -8 0xBAADF00D 0x00000031 0xDDDDDDDD 0xFEEEFEEE Request #, increases from 0
0x00320FFC -4 0xBAADF00D 0xFDFDFDFD 0xDDDDDDDD 0xFEEEFEEE No mans land
0x00321000 +0 0xBAAD...
Python Infinity - Any caveats?
...
A simple float addition, multiplication, etc will happily produce inf though: f=1.3407807929942597e+154; f*f => inf. It seems rather an exception of ** to raise an OverflowError.
– eregon
Jan 6 '15 at 21:32
...
If REST applications are supposed to be stateless, how do you manage sessions?
...picture has its own URI and can be the target of future requests. You can fetch, modify, and delete this resource through HTTP.
Hope this helps differentiate what statelessness and various states mean.
share
|
...
WSDL vs REST Pros and Cons
...de of HTTP. I would be interested to see how the verbs GET/POST/PUT/DELETE/etc. work in a rest "protocol" without HTTP. Link?
– Kekoa
Feb 27 '13 at 18:46
|...
What is the difference between properties and attributes in HTML?
...ildElementCount, childNodes, children, classList, className, clientHeight, etc.
For a given DOM node object, properties are the properties of that object, and attributes are the elements of the attributes property of that object.
When a DOM node is created for a given HTML element, many of its pro...
How to print a number with commas as thousands separators in JavaScript
... (since 789 is a multiple of 3 digits, 678 is a multiple of 3 digits, 567, etc.). The negative assertion checks that the multiple of 3 digits does not have any digits after it. 789 has a period after it so it is exactly a multiple of 3 digits, so a comma goes there. 678 is a multiple of 3 digits but...
Regular expression for floating point numbers
...ns", as implemented in most modern languages, APIs, frameworks, libraries, etc., are based on a concept developed in formal language theory. However, software engineers have added many extensions that take these implementations far beyond the formal definition. So, while most regular expression engi...
What is the difference between i++ and ++i?
... i++ or ++i ( i being a number variable like int , float , double , etc). Anyone who knows this?
6 Answers
...
What are the disadvantages of using persistent connection in PDO
... (Apache for mod_php, the current FastCGI process if you're using FastCGI, etc), not at the PHP level, and PHP doesn't tell the parent process to let the connection die when the script terminates abnormally.
If the dead script locked tables, those tables will remain locked until the connection dies...