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Which is the fastest algorithm to find prime numbers?

... a prime hash table size within certain ranges. If N is something on the order of 2^30, do you really want to do 30000 division tests to search for any factors? Obviously not. The common practical solution to this problem is a simple test called an Euler probable prime test, and a more po...
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How can I do an asc and desc sort using underscore.js?

... Descending order using underscore can be done by multiplying the return value by -1. //Ascending Order: _.sortBy([2, 3, 1], function(num){ return num; }); // [1, 2, 3] //Descending Order: _.sortBy([2, 3, 1], function(num){ re...
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Does file_get_contents() have a timeout setting?

... link may take more than 15 minutes to process. Now, I worry about whether PHP's file_get_contents() has a timeout period? ...
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php var_dump() vs print_r()

What is the difference between var_dump() and print_r() in terms of spitting out an array as string? 12 Answers ...
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Convert HTML to PDF in .NET

...is/ $ 439 - $ 1439 - https://www.sautinsoft.com/products/pdf-metamorphosis/order.php https://www.sautinsoft.com/products/pdf-metamorphosis/convert-html-to-pdf-dotnet-csharp.php HtmlRenderer.PdfSharp https://www.nuget.org/packages/HtmlRenderer.PdfSharp/1.5.1-beta1 BSD-UNSPECIFIED License Puppetee...
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Popstate on page's load in Chrome

... calls to update some results on the page and use history.pushState() in order to update the browser's location bar without page reload. Then, of course, I use window.popstate in order to restore previous state when back-button is clicked. ...
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jQuery AJAX submit form

...Query serialize function. AjaxForm: $("#theForm").ajaxForm({url: 'server.php', type: 'post'}) or $("#theForm").ajaxSubmit({url: 'server.php', type: 'post'}) ajaxForm will send when the submit button is pressed. ajaxSubmit sends immediately. Serialize: $.get('server.php?' + $('#theForm').ser...
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Count the number of occurrences of a string in a VARCHAR field?

..., "khunt", "") ) ) / LENGTH("khunt") ) AS count1 FROM test ORDER BY count1 DESC LIMIT 0, 2 Thanks Yannis, your solution worked for me and here I'm sharing same solution for multiple keywords with order and limit. ...
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How to get a cross-origin resource sharing (CORS) post request working

...where example.com is hosted), set these headers (added some sample code in PHP): header('Access-Control-Allow-Origin: https://not-example.com'); header('Access-Control-Allow-Credentials: true'); header('Access-Control-Max-Age: 604800'); header("Content-type: application/json"); $array = array("ok" ...
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In Laravel, the best way to pass different types of flash messages in the session

.... Follow these steps below: Create a file: "app/Components/FlashMessages.php" namespace App\Components; trait FlashMessages { protected static function message($level = 'info', $message = null) { if (session()->has('messages')) { $messages = session()->pull('messages'...