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Map.clear() vs new Map : Which one will be better? [duplicate]

... The idea of having clear() method is to remove references to other objects from the map, so that the key/values are not held up from gcing if the "map is referenced somewhere else". But if your map is a local map only used by yo...
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Search for all occurrences of a string in a mysql database [duplicate]

...l in a database. I want to search all tables and all fields. But I have no idea where to start or if it's even possible. 17...
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Traits in PHP – any real world examples/best practices? [closed]

...of the biggest additions for PHP 5.4. I know the syntax and understand the idea behind traits, like horizontal code re-use for common stuff like logging, security, caching etc. ...
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git undo all uncommitted or unsaved changes

... several times because it was removing all downloaded dependencies and my .idea folder. Need a better solution. – EresDev Sep 7 '18 at 23:30 2 ...
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Specifying column name in a “references” migration

... really use indexes by default. Now if you want indexes (which are a great idea - despite the fact that rails will completely ignore them), than you can certainly add them. You will want to check out the guide I link for more info on migrations in general, and you may even end up putting calling SQL...
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performSelector may cause a leak because its selector is unknown

... performSelector: and documents these methods as "inherently unsafe" The idea of sending messages based on a named selector is not, however, an "inherently unsafe" feature. This idea has been used successfully for a long time in Objective-C as well as many other programming languages. 1 All Obj...
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Resharper Alt Enter not working

...-> Options -> Keyboard & Menus Select "ReSharper 2.x or IntelliJ IDEA" Click "Apply Scheme" Click "Save" Resharper -> Options -> Keyboard & Menus Select "Visual Studio" Click "Apply Scheme" Click "Save" ...
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ASP.NET Web Site or ASP.NET Web Application?

...location. App_Code vs Bin Deploying shared code files is generally a bad idea, but that doesn’t mean you have to choose Web Application. You can have a Web Site that references a class library project that holds all the code for the Web Site. Web Applications is just a convenient way to do it. ...
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How to generate unique ID with node.js

...coded any node/js in around 2 years and haven't tested this, but the basic idea should hold – don't use a busy loop, and use callbacks. You might want to have a look at the node async package. share | ...
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Easier way to create circle div than using an image?

...ing a question here on Stack Overflow, to see if anyone else has any other ideas. – thirtydot Jan 6 '12 at 15:57 ...