Month: October 2022

[Solved] How to implement file reading and creating into a structure [closed]

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assuming your config is splitted in sections like: [myImportantSection] someBigText = “foo tha can be more +1000 simbols” isOkay = true myAge = 24 and assuming you are using boost: #include <boost/property_tree/ptree.hpp> #include <boost/property_tree/ini_parser.hpp> boost::property_tree::ptree myPtree; boost::property_tree::ini_parser::read_ini(“config.txt”, myPtree); auto text{myPtree.get<std::string>(“myImportantSection.someBigText”)}; auto isOk{myPtree.get<bool>(“myImportantSection.isOkay”)}; auto age{myPtree.get<int>(“myImportantSection.myAge”)}; struct Config { std::string text{}; bool ok{false}; int age{0}; }; Config … Read more

[Solved] What can I do to remove or minimize this code duplication that will provide the same functionality and behavior?

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You can make use of CRTP. Add a templated second base class to hold the ID handling code. template <class T> class ComponentID { public: ComponentID(std::string &id_) { // Same as updateID above } }; class Wire: public Component, ComponentID<Wire> { public: Wire(const std::string& name = “Wire”) : Component(name), ComponentID(id_) { } // … }; … Read more

[Solved] How to extract number from backwards in javascript in optimised way [closed]

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Here’s a simple solution using substrings: var number = “+91-84040355236545”; var lastTenDigitsNumber = number.substr(number.length – 10); console.log(lastTenDigitsNumber); A simpler solution is using slice: var number = “+91-84040355236545”; console.log(number.slice(-10)); Another solution using a function and RegEX: function extractTenDigits(number) { var rx = /(\d{10}$)/g; var arr = rx.exec(number); return arr[1]; } var number = “+91-84040355236545”; console.log(extractTenDigits(number)); I … Read more

[Solved] To understand a line of PHP code about a connection

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$user is an instance of a class. connection is a method in that class. $mail & $password are parameters to that method. This has nothing todo with arrays. what you mean would be: $foo = array(“key” => “value”); maybe this can help you: http://www.webstockbox.com/php/7-tutorials-on-how-to-create-a-php-login-system/ solved To understand a line of PHP code about a connection

[Solved] Appending semicolon to each item in array and comma to set of array objects, to form a string

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I solved the problem. Code: public static void main(String[] args) { String jsonArray = “{\”payments\”:[{\”a\”:\”11\”,\”b\”:\”21\”,\”c\”:\”34\”,\”d\”:\”0\”},{\”a\”:\”54\”,\”b\”:\”66\”,\”c\”:\”21\”,\”d\”:\”76\”},{\”a\”:\”34\”,\”b\”:\”23\”,\”c\”:\”43\”,\”d\”:\”88\”}]}”; JsonObject jsonObject2 = new Gson().fromJson(jsonArray, JsonObject.class); JsonObject innerObj = new JsonObject(); StringBuilder joinBuilder = new StringBuilder(); Map<String, String> testMap = new LinkedHashMap<String, String>(); JsonArray paymentsArray = jsonObject2.getAsJsonArray(“payments”); for (JsonElement jsonElement : paymentsArray) { Set<Entry<String, JsonElement>> elemEntry = ((JsonObject) jsonElement).entrySet(); Iterator<Entry<String, … Read more

[Solved] Why is list comprehension so prevalent in python? [closed]

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I believe the goal in this case to make your code as concise and efficient as possible. At times it can seem convoluted, but the computer looping through multiple lines as opposed to a single line adds processing time, which in large applications and across many iterations can cause some delays. Additionally, although it seems … Read more

[Solved] Javascript program is not recognizing an if statement [duplicate]

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Since playerSelections and colorSequence are arrays, your the condition gameObject.playerSelections === gameObject.colorSequence tests that the array references are equal, not the contents of the arrays. You need to check that each element of the array is equal: How to check identical array in most efficient way? 1 solved Javascript program is not recognizing an if … Read more

[Solved] How to select date of last 5 days? [closed]

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You can use a recursive CTE: with dates as ( select cast(getdate() as date) as dte union all select dateadd(day, -1, dte) from dates where datediff(day, dte, getdate()) <= 4 ) select * from dates order by dte desc; Obviously, you can reference any other date you want instead of getdate(). Your example suggests that … Read more