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Detect whether there is an Internet connection available on Android [duplicate]
I need to detect whether the Android device is connected to the Internet.
6 Answers
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How to initialize an array's length in JavaScript?
...he tutorials that I've read on arrays in JavaScript (including w3schools and devguru ) suggest that you can initialize an array with a certain length by passing an integer to the Array constructor using the var test = new Array(4); syntax.
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Easiest way to check for an index or a key in an array?
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To check if the element is set (applies to both indexed and associative array)
[ ${array[key]+abc} ] && echo "exists"
Basically what ${array[key]+abc} does is
if array[key] is set, return abc
if array[key] is not set, return nothing
References:
See Parameter Expa...
Call a Server-side Method on a Resource in a RESTful Way
Keep in mind I have a rudimentary understanding of REST. Let's say I have this URL:
8 Answers
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How to start working with GTest and CMake
I have recently been sold on using CMake for compiling my C++ projects, and would now like to start writing some unit tests for my code. I have decided to use the Google Test utility to help with this, but require some help in getting started.
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How to generate a random int in C?
Is there a function to generate a random int number in C? Or will I have to use a third party library?
27 Answers
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What's the difference between Unicode and UTF-8? [duplicate]
...he system codepage on the current machine, subject to total unportability) and there are Unicode strings (stored internally as UTF-16LE).
This was all devised in the early days of Unicode, before we realised that UCS-2 wasn't enough, and before UTF-8 was invented. This is why Windows's support for ...
Objective-C: Where to remove observer for NSNotification?
I have an objective C class. In it, I created a init method and set up a NSNotification in it
14 Answers
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EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?
... putting a wrapper function in the Configuration class in the Seed method, and replaced calls to SaveChanges with calls to my function instead. This function would simply enumerate the errors within the EntityValidationErrors collection, and rethrow an exception where the Exception message lists th...
How to implement a tree data-structure in Java? [closed]
Is there any standard Java library class to represent a tree in Java?
24 Answers
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