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Android Get Current timestamp?

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Concatenating two lists - difference between '+=' and extend()

... Maybe the difference has more implications when it comes to ducktyping and if your maybe-not-really-a-list-but-like-a-list supports .__iadd__()/.__add__()/.__radd__() versus .extend() – Nick T Dec 15 '14 at 22:21 ...
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Different types of thread-safe Sets in Java

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How do I remove all non alphanumeric characters from a string except dash?

... Here's a regex compiled version: return Regex.Replace(str, "[^a-zA-Z0-9_.]+", "", RegexOptions.Compiled); Same basic question – Paige Watson Sep 30 '11 at 16:35 ...
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Ignoring time zones altogether in Rails and PostgreSQL

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How to get first 5 characters from string [duplicate]

... Thanks, this is what I needed it for: if(substr($myURL, 0, 4) == "www.") $myURL = preg_replace('/www./', '', $myURL, 1); – shanehoban Jun 19 '14 at 9:50 1 ...
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Using arrays or std::vectors in C++, what's the performance gap?

... Now the std::vector vs. native C++ arrays (taken from the internet): // Comparison of assembly code generated for basic indexing, dereferencing, // and increment operations on vectors and arrays/pointers. // Assembly code was generated by gcc 4.1.0 invoked with g++ -O3 -S on a // x86_64-suse...
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Optimising Android application before release [closed]

... Read this blogpost. medium.com/@hammad_tariq/… – Developine Jun 30 '17 at 5:00 add a comment  |  ...
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Container-fluid vs .container

... explain so lets look at the examples Example one container-fluid: http://www.bootply.com/119981 So you see how the container takes up the whole screen...that's a container-fluid. Now lets look at the other just a normal container and watch the edges of the preview Example two container http://www....
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Add hover text without javascript like we hover on a user's reputation

...g in this situation. <abbr title="Hover">Text</abbr> https://www.w3schools.com/tags/tag_abbr.asp share | improve this answer | follow | ...