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Make copy of an array

I have an array a which is constantly being updated. Let's say a = [1,2,3,4,5] . I need to make an exact duplicate copy of a and call it b . If a were to change to [6,7,8,9,10] , b should still be [1,2,3,4,5] . What is the best way to do this? I tried a for loop like: ...
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How do you test to see if a double is equal to NaN?

I have a double in Java and I want to check if it is NaN . What is the best way to do this? 7 Answers ...
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Huawei, logcat not showing the log for my app?

OK, logcat is showing system logs but it is not showing application log on my Huawei Ascend. If I switch to another device such as my Galaxy Nexus or Nexus 7 then for the same app (same APK even) log is displayed. ...
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How to wait 5 seconds with jQuery?

I'm trying to create an effect where the page loads, and after 5 seconds, the success message on the screen fades out, or slides up. ...
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How do I set up NSZombieEnabled in Xcode 4?

How do I set up NSZombieEnabled and CFZombieLevel for my executable in Xcode 4? 7 Answers ...
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Obtain form input fields using jQuery?

I have a form with many input fields. 26 Answers 26 ...
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UITapGestureRecognizer breaks UITableView didSelectRowAtIndexPath

I have written my own function to scroll text fields up when the keyboard shows up. In order to dismiss the keyboard by tapping away from the text field, I've created a UITapGestureRecognizer that takes care of resigning first responder on the text field when tapping away. ...
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Capitalize words in string [duplicate]

What is the best approach to capitalize words in a string? 21 Answers 21 ...
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Get array of object's keys

I would like to get the keys of a JavaScript object as an array, either in jQuery or pure JavaScript. 7 Answers ...
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What do *args and **kwargs mean? [duplicate]

What exactly do *args and **kwargs mean? 5 Answers 5 ...