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JavaScript null check

...d, and so there won’t be any error. You are right about != null followed by !== undefined being useless, though. share | improve this answer | follow | ...
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How do I display the current value of an Android Preference in the Preference summary?

...()); } } This is easily extensible to other preference classes. And by using the getPreferenceCount and getPreference functionality in PreferenceScreen and PreferenceCategory, you could easily write a generic function to walk the preference tree setting the summaries of all preferences of the...
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How to keep up with the latest versions of Node.js in Ubuntu? PPA? Compiling?

... It currently has 0.8.16. That was released by upstream on 2012-12-13, and built in the PPA on 2012-12-15. 0.8.15 came out on 2012-11-26 and was built in the PPA on 2012-12-09. That looks like pretty tight tracking to me. – Tom Anderson ...
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How do I update Node.js?

... You don't need this. Node is not Ruby. – fiatjaf May 3 '15 at 13:00 26 ...
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How can I make a clickable link in an NSAttributedString?

...apturing that result - which is fine. You could either capture that result by assigning it to a local variable or adjust the method to stop it returning the boolean value if that better suits your needs. I hope that helps? – Karl Nosworthy Jul 25 '17 at 23:27 ...
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Access Enum value using EL with JSTL

... Seems this doesn't work for inner enums? Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1005E:(pos 0): Type cannot be found 'my.package.model.EngagementRequest.EngagementStatus' – Eddie Sep 2 '11 at 16:37 ...
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How to enable external request in IIS Express?

... This is by far the easiest solution. I prefer not to mess with the applicationhost.config if I don't have to. – skalpin Jun 10 '16 at 14:44 ...
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ActionBarCompat: java.lang.IllegalStateException: You need to use a Theme.AppCompat

... about original android actionbar style items, we should use one, provided by support library. ActionBar Compat items are defined just like original android, but without "android:" part in the front: <style name="Theme.Styled" parent="@style/Theme.AppCompat.Light"> <!-- Setting values ...
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how do I check in bash whether a file was created more than x time ago?

...ee timestamps (generally, they can be turned off on certain filesystems or by certain filesystem options): Last access time Last modification time Last change time a "Change" to the file is counted as permission changes, rename etc. While the modification is contents only. ...
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How to get an object's properties in JavaScript / jQuery?

... You can look up an object's keys and values by either invoking JavaScript's native for in loop: var obj = { foo: 'bar', base: 'ball' }; for(var key in obj) { alert('key: ' + key + '\n' + 'value: ' + obj[key]); } or using jQuery's .each() method: $...