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How do you write a comment in Markdown, i.e. text that is not rendered in the HTML output? I found nothing on the Markdown project. Question&Answers:os...

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If I have a vector of pairs: std::vector<std::pair<int, int> > vec; Is there and easy way to sort the list ... ), std::something_magic<int, int, std::less>()); Question&Answers:os...

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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new operator - When to use "new" and when not to, in C++?

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javascript - How do I correctly detect orientation change using Phonegap on iOS?

I found this orientation test code below looking for JQTouch reference material. This works correctly in the iOS simulator on ... to the left)."; break; } } Question&Answers:os...

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How to sum array of numbers in Ruby?

I have an array of integers. For example: array = [123,321,12389] Is there any nice way to get the sum of them? I ... 0 array.each { |a| sum+=a } would work. Question&Answers:os...

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python - Using Django time/date widgets in custom form

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llvm - Does the C++ standard allow for an uninitialized bool to crash a program?

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javascript - HTML5 record audio to file

What I ultimately want to do is record from the user's microphone, and upload the file to the server when they're ... I go from that, to recording to a file? Question&Answers:os...

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c# - Find an item in a list by LINQ

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How do I find the location of Python module sources?

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What is the best way to do a substring in a batch file?

I want to get the name of the currently running batch file without the file extension. Thanks to this link, ... to assume 3 letter extensions in this scenario. Question&Answers:os...

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asp.net - Fixing slow initial load for IIS

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python - Reshape wide to long in pandas

Let's assume that I have the following dataframe in pandas: AA BB CC date 05/03 1 2 3 06/03 4 5 6 07/03 ... on dates and the initial column names (AA, BB, CC). Question&Answers:os...

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python - Removing pip's cache?

I need to install psycopg2 v2.4.1 specifically. I accidentally did: pip install psycopg2 Instead of: pip ... specific version I'm including in the command? Question&Answers:os...

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Background service with location listener in android

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Difference between filter and filter_by in SQLAlchemy

Could anyone explain the difference between filter and filter_by functions in SQLAlchemy? Which one should I be using? Question&Answers:os...

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.net - How to Consume WCF Service with Android

I am creating a server in .NET and a client application for Android. I would like to implement an ... client and reply with session string. Thanks! Question&Answers:os...

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c - Differ between header and content of http server response (sockets)

i want to know, is there a possibility to find out where in the response Stream the header ends? The background ... , so i might just oversee some easy stuff. Question&Answers:os...

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c++ - std::string to char*

I want to convert a std::string into a char* or char[] data type. std::string str = "string"; char* chr = ... ... . What methods are there available to do this? Question&Answers:os...

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iphone - How to hide uitabbarcontroller

I have a problem with UITabBarController. In my application, I want to hide it but without using hidesBottomBarWhenPushed ... find out how I can do this. Question&Answers:os...

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javascript - Moment js date time comparison

I'm using moment.js to format my date time, here I have two date values, and I want to achieve a particular ... to the else condition. I don't know why? Question&Answers:os...

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gridview - Android Recyclerview GridLayoutManager column spacing

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JavaScript Inheritance

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Downloading images with node.js

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net 3.5 - Named string formatting in C#

Is there any way to format a string by name rather than position in C#? In python, I can do something like ... be nice, but a dictionary is acceptable too. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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