大约有 42,000 项符合查询结果（耗时：0.0667秒） [XML]
Printing a variable memory address in swift
...
Swift 2
This is now part of the standard library: unsafeAddressOf.
/// Return an UnsafePointer to the storage used for `object`. There's
/// not much you can do with this other than use it to identify the
/// object
Swift 3
For Swift 3, use withUnsafeP...
Querying DynamoDB by date
I'm coming from a relational database background and trying to work with amazon's DynamoDB
7 Answers
...
What algorithms compute directions from point A to point B on a map?
...stead of doing Dijkstra's once from source to dest, you start at each end, and expand both sides until they meet in the middle. This eliminates roughly half the work (2*pi*(r/2)^2 vs pi*r^2).
To avoid exploring the back-alleys of every city between your source and destination, you can have several l...
How to disallow temporaries
...macro-based solution:
#define Foo class Foo
The statement Foo("hi"); expands to class Foo("hi");, which is ill-formed; but Foo a("hi") expands to class Foo a("hi"), which is correct.
This has the advantage that it is both source- and binary-compatible with existing (correct) code. (This claim is...
ASP.NET MVC - TempData - Good or bad practice
...
I kind of think of temp data as being a fire-and-forget mechanism for notifying the user. Its great to give them a reminder of something they recently did, but I'd also be hesitant to make it a required step in some user process. The reason being if they refresh the p...
What's so great about Lisp? [closed]
...ng Lisp demonstrates developer enlightenment.
I've heard of 3 weaknesses (and their counter-arguments):
Dynamic typing.
There's an argument for statically typed languages out there revolving around giving the compiler enough information to catch a certain class of errors so they don't happen at...
What is the id( ) function used for?
I read the Python 2 docs and noticed the id() function:
13 Answers
13
...
Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
...n's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C library functions.
share
|
improve this answer
...
Highlight a word with jQuery
...ipt-text-higlighting-jquery-plugin.html
*
* Code a little bit refactored and cleaned (in my humble opinion).
* Most important changes:
* - has an option to highlight only entire words (wordsOnly - false by default),
* - has an option to be case sensitive (caseSensitive - false by default)
* ...
Why are empty catch blocks a bad idea? [closed]
...catch is a bad idea because you are silently swallowing an error condition and then continuing execution. Occasionally this may be the right thing to do, but often it's a sign that a developer saw an exception, didn't know what to do about it, and so used an empty catch to silence the problem.
I...