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How do I see if Wi-Fi is connected on Android?

...ctionInfo(); supState = wifiInfo.getSupplicantState(); Which will return one of these states at the time you call getSupplicantState(); ASSOCIATED - Association completed. ASSOCIATING - Trying to associate with an access point. COMPLETED - All authentication completed. DIS...
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Javascript switch vs. if…else if…else

... switch and if...else if...else is small, they basically do the same work. One difference between them that may make a difference is that the expression to test is only evaluated once in a switch while it's evaluated for each if. If it's costly to evaluate the expression, doing it one time is of cou...
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Java: How to get input from System.console()

... The following takes athspk's answer and makes it into one that loops continually until the user types "exit". I've also written a followup answer where I've taken this code and made it testable. import java.io.BufferedReader; import java.io.IOException; import java.io.InputStre...
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ASP.NET MVC: Custom Validation by DataAnnotation

... return null; } } and then you might have a view model and decorate one of its properties with it: public class MyViewModel { [CombinedMinLength(20, "Bar", "Baz", ErrorMessage = "The combined minimum length of the Foo, Bar and Baz properties should be longer than 20")] public string ...
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What are best practices for REST nested resources?

As far as I can tell each individual resource should have only one canonical path. So in the following example what would good URL patterns be? ...
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Why I can't change directories using “cd”?

...its, you're back in the interactive shell and nothing ever changed there. One way to get around this is to use an alias instead: alias proj="cd /home/tree/projects/java" share | improve this answ...
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How to grep Git commit diffs or contents for a certain word?

... @jakeonrails, That answer should have been an edit to this (older) one, so we don't have these annoying duplicates. But people only want the reputation, instead of a clean answers page. – Iulian Onofrei Feb 6 '18 at 14:56 ...
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When to use MongoDB or other document oriented database systems? [closed]

... k/v store, use it like a rdbms, but for god sake, build your killer app! None of this will matter to most apps. Facebook still uses MySQL, a lot. Wikipedia uses MySQL, a lot. FriendFeed uses MySQL, a lot. NoSQL is a great tool, but it’s certainly not going to be your competitive edge, it’s not ...
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How to copy text programmatically in my Android app?

... So everyone agree on how this should be done, but since no one want to give a complete solution, here goes: int sdk = android.os.Build.VERSION.SDK_INT; if(sdk < android.os.Build.VERSION_CODES.HONEYCOMB) { android.text.Clipboa...
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How to turn a String into a JavaScript function call? [duplicate]

... Seeing as I hate eval, and I am not alone: var fn = window[settings.functionName]; if(typeof fn === 'function') { fn(t.parentNode.id); } Edit: In reply to @Mahan's comment: In this particular case, settings.functionName would be "clickedOnItem". This would...