大约有 16,380 项符合查询结果（耗时：0.0256秒） [XML]
Which kind of pointer do I use when?
Ok, so the last time I wrote C++ for a living, std::auto_ptr was all the std lib had available, and boost::shared_ptr was all the rage. I never really looked into the other smart pointer types boost provided. I understand that C++11 now provides some of the types boost came up with, but not all ...
How can I check if character in a string is a letter? (Python)
...pper , but can you check whether or not that character is a letter?
For Example:
6 Answers
...
Maven check for updated dependencies in repository
Is there a Maven plugin that allows you to check if there are newer versions of dependencies available in the repository?
5...
What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
...
Copied verbatim from http://cocoaheads.tumblr.com/post/17757846453/objective-c-literals-for-nsdictionary-nsarray-and:
Objective-C literals: one can now create literals for NSArray, NSDictionary, and NSNumber (just like one can create lite...
How to detect duplicate values in PHP array?
I am working with a one dimensional array in PHP. I would like to detect the presence of duplicate values, then count the number of duplicate values and out put the results. For example, given the following array:
...
Pry: show me the stack
...
Use the pry-stack_explorer plugin, it allows you to move up and down the call-stack (with up and down), display the callstack (with show-stack), and so on:
see here:
Frame number: 0/64
From: /Users/johnmair/ruby/rails_projects/personal_site/app/controllers/posts_controller....
How is the 'use strict' statement interpreted in Node.js? [duplicate]
I have started to explore the Node.js and wrote many demo web application, to understand the flow of Node.js, Express.js, jade, etc..
...
What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function
I'm putting in some effort to learn Python, and I am paying close attention to common coding standards. This may seem like a pointlessly nit-picky question, but I am trying to focus on best-practices as I learn, so I don't have to unlearn any 'bad' habits.
...
Visualizing branch topology in Git
I'm playing with Git in isolation on my own machine, and I find it difficult to maintain a mental model of all my branches and commits. I know I can do a git log to see the commit history from where I am, but is there a way to see the entire branch topography, something like these ASCII maps that ...
Grouping functions (tapply, by, aggregate) and the *apply family
Whenever I want to do something "map"py in R, I usually try to use a function in the apply family.
10 Answers
...