[Solved] What is the use of perl folder in xampp why it is included in xampp? [closed]

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XAMPP is a completely free, easy to install Apache distribution containing MariaDB, PHP, and Perl. The XAMPP open source package has been set up to be incredibly easy to install and to use. — https://www.apachefriends.org/index.html The Perl folder contains files needed to run server-side code written in Perl. 4 solved What is the use of … Read more

[Solved] What are the advantages of using JSX in React?

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I think you misunderstood what is JSX. From the React doc: const element = <h1>Hello, world!</h1>; This funny tag syntax is neither a string nor HTML…It is called JSX. In other words, JSX is like HTML. It’s easier to write code instead of pure Javascript: const element = React.createElement( ‘h1’, ‘Hello, world!’ ); solved What … Read more

[Solved] How to generate pseudorandom no. easily? [closed]

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Here’s a simple example that generates 10 evenly distributed random numbers in the range -42 to 42 : #include <iostream> #include <functional> #include <random> int main() { std::random_device seed_device; std::mt19937 engine(seed_device()); std::uniform_int_distribution<int> distribution(-42, 42); auto rnd = std::bind(distribution, std::ref(engine)); for (int i = 0; i < 10; ++i) { std::cout << “random number: ” << … Read more

[Solved] How do I relay First Name to the right of Hello after a user enters it? [closed]

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If you are just looking to populate an element with the return from two prompts i think this will fit your needs. function greeting() { var firstName, lastName; firstName = prompt(“Enter your First Name”); lastName = prompt(“Enter your Last Name”); var greetingDiv = document.getElementById(‘greeting’); greetingDiv.innerHTML = firstName + ” ” + lastName; } greeting(); 1 … Read more

[Solved] How to store a file in C

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That is possible depending on the OS. Modern OSes have memory protection which don’t allow these kind of operations. But if you go ahead and disable all of those security features, you can send and load the binary remotely into memory and execute it. And that still involves pretty advanced stuff. Some reading: https://www.blackhat.com/presentations/bh-usa-07/Harbour/Whitepaper/bh-usa-07-harbour-WP.pdf https://superuser.com/questions/241259/how-to-run-a-local-application-on-a-distant-server-with-ssh … Read more

[Solved] .concat() method is not working

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Why not just map the values of data1 and concat then the data of data2 in each iteration for a new array? var data1 = [‘a’, ‘b’, ‘c’], data2 = [‘d’, ‘e’, ‘f’], result = data1.map(function (a) { return [a].concat(data2); }); console.log(result); .as-console-wrapper { max-height: 100% !important; top: 0; } solved .concat() method is not … Read more

[Solved] Does using the iterator member function “empty()” only work on certain vector types?

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empty() is not “an iterator member function”. You are not calling empty() on the iterator – you are dereferencing the iterator, and calling empty() on the vector element that the iterator refers to. It might be clearer if you replace iter->empty() with an equivalent form (*iter).empty() In still other words, auto iter = vec.begin(); iter->empty(); … Read more

[Solved] Text-box Functions

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The problem related to comma in the Textbox is because you are using an Int64.TryParse(), so the expected value are an integer… When you use a value with comma, isn’t a integer value anymore, so you need to use Double.TryParse() or Decimal.TryParse(). But, even using this, I recomend you to use a MaskedTextbox (like described … Read more

[Solved] How can I do select of all user referral id?

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If you have the data in memory(which is problematic for a big table) $users = array( array(“id” => 1, “user_id” => 1 , “friend_id” => 2,), array(“id” => 2, “user_id” => 2 , “friend_id” => 3,), array(“id” => 3, “user_id” => 3 , “friend_id” => 4,), array(“id” => 4, “user_id” => 10, “friend_id” => 15,), … Read more