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(![]+[])[+[]]… Explain why this works

...(![]+[])[+[]] is "f" (the first char of "false"), (![]+[])[+!+[]]) is "a", etc... How does it work? Let's examine the first character, 'f': (![]+[])[+[]]; // 'f' The first part of the expression—between parentheses—is composed by ![]+[], the first operand of the Addition operator is ![] and...
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Android: allow portrait and landscape for tablets, but force portrait on phone?

...ically) will behave like normal, based on sensor and user-locked rotation, etc. Everything else (phones, pretty much) will be portrait only. share | improve this answer | fol...
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Android Endless List

...n is to implement an OnScrollListener and make changes (like adding items, etc.) to the ListAdapter at a convenient state in its onScroll method. The following ListActivity shows a list of integers, starting with 40, adding items when the user scrolls to the end of the list. public class Test exte...
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How can I get selector from jQuery object

... selectors. A solution would be to use a wrapper to around bind(), click() etc. to add events instead of adding it directly. jQuery.fn.addEvent = function(type, handler) { this.bind(type, {'selector': this.selector}, handler); }; The selector is being passed as an object's property named sele...
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Javascript seconds to minutes and seconds

... ... work (like NaN, +/-Infinity etc.) and rounding-options which should be done by the programmer, prior to calling the function, based on the specific needs and possible input-values that the application can encounter! Naturally you are free to patch it i...
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Should Gemfile.lock be included in .gitignore?

...doesn't have to recalculate all the gem dependencies each time you deploy, etc. From cowboycoded's comment below: If you are working on a gem, then DO NOT check in your Gemfile.lock. If you are working on a Rails app, then DO check in your Gemfile.lock. Here's a nice article explaining what t...
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How to increase space between dotted border dots

...*/ } This also means that you can add text-shadow to the dots, gradients etc. Anything you want... Well, it works really great for horizontal borders. If you need vertical ones, you may specify a class for another hr and use the CSS3 rotation property. ...
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How do I get the filepath for a class in Python?

...ern is: /project /appname models.py views.py /templates index.html etc. share | improve this answer | follow | ...
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How to give ASP.NET access to a private key in a certificate in the certificate store?

...he menu list for Personal... So if you've put your cert in Trusted People, etc. you're out of luck. We found a way around this which worked for us. Drag and drop the cert to Personal, do the Manage Private Keys thing to grant permissions. Remember to set to use object-type built-ins and use the loc...
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How can I put a ListView into a ScrollView without it collapsing?

... listView.getPaddingBottom(); for (int i = 0; i < listAdapter.getCount(); i++) { View listItem = listAdapter.getView(i, null, listView); if (listItem instanceof ViewGroup) { listItem.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, Layou...