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Difference between null and empty (“”) Java String
... can still invoke methods or functions on it like
a.length()
a.substring(0, 1)
and so on.
If the String equals null, like b, Java would throw a NullPointerException if you tried invoking, say:
b.length()
If the difference you are wondering about is == versus equals, it's this:
== compares ...
How to Debug Variables in Smarty like in PHP var_dump()
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edited Aug 30 '19 at 8:23
algorhythm
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How to resolve : Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” [du
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I know this thread is a year old now but having experienced the same problem I managed to solve...
TypeError: $.ajax(…) is not a function?
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1032
Neither of the answers here helped me. The problem was: I was using the slim build of jQuery, ...
Is there a good tutorial on MSBuild scripts? [closed]
...Very easy to understand and follow:
https://codingcockerel.wordpress.com/2008/04/15/automating-the-build-with-msbuild/
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PHP Fatal error: Cannot redeclare class
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answered Apr 2 '09 at 3:15
whichdanwhichdan
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How do I check whether a checkbox is checked in jQuery?
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edited Mar 9 '18 at 2:06
community wiki
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How to export all collections in MongoDB?
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707
For lazy people, use mongodump, it's faster:
mongodump -d <database_name> -o <directo...
How to make a phone call programmatically?
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10 Answers
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How can I get current location from user in iOS
...cyBest;
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
[self.locationManager requestWhenInUseAuthorization];
[locationManager startUpdatingLocation];
You also have to add a string for the NSLocationAlwaysUsageDescription or NSLocationWhenInUseUsageDescription keys to th...