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Performance of foreach, array_map with lambda and array_map with static function

... I've got an opposite result with the following codes which are simplified from my current projects: // test a simple array_map in the real world. function test_array_map($data){ return array_map(function($row){ return array( 'productId' => $row['id'] + 1, 'pr...
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#ifdef vs #if - which is better/safer as a method for enabling/disabling compilation of particular s

...1000); #endif Second, you're in a better position if you want to migrate from a #define to a global constant. #defines are usually frowned on by most C++ programmers. And, Third, you say you've a divide in your team. My guess is this means different members have already adopted different approach...
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Regular Expression to match only alphabetic characters

...de letters then use: /^\p{L}+$/u Here, \p{L} matches any kind of letter from any language share | improve this answer | follow | ...
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What is the relative performance difference of if/else versus switch statement in Java?

... It should be noted that switches work with more than just ints. From the Java Tutorials: "A switch works with the byte, short, char, and int primitive data types. It also works with enumerated types (discussed in Enum Types), the String class, and a few special classes that wrap certain p...
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How do I convert array of Objects into one Object in JavaScript?

...(obj, item) => (obj[item.key] = item.value, obj) ,{}); Here we benefit from comma operator, it evaluates all expression before comma and returns a last one(after last comma). So we don't copy obj each time, rather assigning new property to it. ...
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Assembly code vs Machine code vs Object code?

...sociation with high-level programming language that are abstracted further from the CPU instructions. Building a complete program involves writing source code for the program in either assembly or a higher level language like C++. The source code is assembled (for assembly code) or compiled (for hig...
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How to define servlet filter order of execution using annotations in WAR

... JBoss EAP 6.1 - it overrides the @WebFilter value and prevents the filter from running at all. – seanf Oct 21 '13 at 5:11 ...
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Escape quote in web.config connection string

...erver=dbsrv;User ID=myDbUser;Password=somepass"word' Update 3: From MSDN (SqlConnection.ConnectionString Property): To include values that contain a semicolon, single-quote character, or double-quote character, the value must be enclosed in double quotation marks. If the value contai...
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How to force table cell content to wrap?

...as necessary to fill line boxes. pre : This value prevents user agents from collapsing sequences of white space. Lines are only broken at preserved newline characters. nowrap : This value collapses white space as for normal, but suppresses line breaks within text. pre-wrap : This val...
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How to Right-align flex item?

...lements and you need to float say the last three right, target the 3rd one from the last only with this margin-left: auto; style. – Daniel Sokolowski Aug 6 '17 at 22:31 ...