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html - Can we have multiple <tbody> in same <table>?

Can we have multiple <tbody> tags in same <table>? If yes then in what scenarios should we use multiple <tbody> tags? Question&Answers:os...

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sorting - Python list sort in descending order

How can I sort this list in descending order? timestamps = [ "2010-04-20 10:07:30", "2010-04-20 10:07:38", "2010-04- ... -20 10:12:13", "2010-04-20 10:25:38" ] Question&Answers:os...

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How can I convert a datetime object to milliseconds since epoch (unix time) in Python?

I have a Python datetime object that I want to convert to unix time, or seconds/milliseconds since the 1970 epoch. How do I do this? Question&Answers:os...

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jQuery/JavaScript collision detection

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ssh breaks out of while-loop in bash

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How to ISO 8601 format a Date with Timezone Offset in JavaScript?

Goal: Find the local time and UTC time offset then construct the URL in following format. Example URL: /Actions ... out from W3C document. Thanks in advance. Question&Answers:os...

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Using CSS to affect div style inside iframe

Is it possible to change styles of a div that resides inside an iframe on the page using CSS only? Question&Answers:os...

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java - Does GC release back memory to OS?

When the garbage collector runs and releases memory does this memory go back to the OS or is it being kept as ... done by JRE using some form of malloc/delete Question&Answers:os...

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Why do browsers create vendor prefixes for CSS properties?

Maybe it's an obvious answer, but Why on earth would browsers decide to create their own vendor prefixes ... redundant to type three lines for one. Question&Answers:os...

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php - How can I with mysqli make a query with LIKE and get all results?

This is my code but it dosn't work: $param = "%{$_POST['user']}%"; $stmt = $db->prepare("SELECT id, ... all the results even if it returns more than 1 row? Question&Answers:os...

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How to implement my very own URI scheme on Android

Say I want to define that an URI such as: myapp://path/to/what/i/want?d=This%20is%20a%20test must be ... or any torrent downloader program (torrent://). Question&Answers:os...

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MySQL foreign key constraints, cascade delete

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Sort array by firstname (alphabetically) in Javascript

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c# - Task vs Thread differences

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html - What is sr-only in Bootstrap 3?

What is the class sr-only used for? Is it important or can I remove it? Works fine without. Here's my example: <div class= ... #">Show all</a></li> </ul> </div> Question&Answers:os...

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r - How to add texture to fill colors in ggplot2

I'm currently using scale_brewer() for fill and these look beautiful in color (on screen and via color printer) ... fill colors when printed in black and white. Question&Answers:os...

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c++ - Is it okay to inherit implementation from STL containers, rather than delegate?

I have a class that adapts std::vector to model a container of domain-specific objects. I want to expose most ... used // in conjunction with the collection. } Question&Answers:os...

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ios - How to present UIAlertController when not in a view controller?

Scenario: The user taps on a button on a view controller. The view controller is the topmost ( ... present a UIAlertController, right there in myUtilityMethod? Question&Answers:os...

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Quickest way to convert XML to JSON in Java

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list - Intersection and union of ArrayLists in Java

Are there any methods to do so? I was looking but couldn't find any. Another question: I need these ... there anything else that would offer a better runtime? Question&Answers:os...

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c++ - Setup OpenCV-2.3 for Visual Studio 2010

I'm trying to use opencv 2.3 with Visual Studio 2010 Express. My code is from example: #include "stdafx.h" ... using CMake software. What am I doing wrong? Question&Answers:os...

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How to create Custom Ratings bar in Android

Hello all i need to perform Ratings in my application... SO i need to create custom Ratings bar... Can Anyone Help me in this? Question&Answers:os...

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c# - Splitting a string into chunks of a certain size

Suppose I had a string: string str = "1111222233334444"; How can I break this string into chunks of some size? e. ... strings: "1111" "2222" "3333" "4444" Question&Answers:os...

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android - Download binary file from OKHTTP

I am using OKHTTP client for networking in my android application. This example shows how to upload binary file. I would ... (); output.close(); input.close(); Question&Answers:os...

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python - How do I hide the console when I use os.system() or subprocess.call()?

I wrote some statements like below: os.system(cmd) #do something subprocess.call('taskkill /F /IM exename.exe') ... can I stop it from popping up the console? Question&Answers:os...

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WPF - Import image as resource

In WinForms it is possible to import an image as a resource, and the image would still work when compiled in the /bin ... -dark.png" /> </Image.Source> </Image> Question&Answers:os...

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c++ - Why is enum class preferred over plain enum?

I heard a few people recommending to use enum classes in C++ because of their type safety. But what does that really mean? Question&Answers:os...

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Excel to CSV with UTF8 encoding

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