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How to run a single test from a rails test suite?

...e tests in one file) rails test -n /TopicsControllerTest/ -v look here https://stackoverflow.com/a/41183694/3626659 share | improve this answer | follow | ...
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Converting milliseconds to a date (jQuery/JavaScript)

...result = date.toLocaleDateString('en', options); // 10/29/2013 See more: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString share | improve th...
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How can I make space between two buttons in same div?

... I used the Bootstrap 4 buttons plugin (https://getbootstrap.com/docs/4.0/components/buttons/#button-plugin) and added the class rounded to the labels and the class mx-1 to the middle button to achieve the desired look and feel of separate radio buttons. Using the ...
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How do I run Asynchronous callbacks in Playground

...groundPage.current.needsIndefiniteExecution = true let url = URL(string: "https://jsonplaceholder.typicode.com/posts/1")! let task = URLSession.shared.dataTask(with: url) { (data, response, error) in guard error == nil else { print(error?.localizedDescription ?? "") return ...
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Create a CSS rule / class with jQuery at runtime

... Here is a jquery plugin that allows you to inject CSS: https://github.com/kajic/jquery-injectCSS Example: $.injectCSS({ "#my-window": { "position": "fixed", "z-index": 102, "display": "none", "top": "50%", "left": "50%" } }); ...
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Generate random 5 characters string

...ile or something predictable like /dev/zero. mt_rand() considered harmful: https://spideroak.com/blog/20121205114003-exploit-information-leaks-in-random-numbers-from-python-ruby-and-php EDIT: If you have OpenSSL support in PHP, you could use openssl_random_pseudo_bytes(): <?php $length = 5;...
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Why check both isset() and !empty()

...et: '" . isset($s) . "'. "; print "!empty: '" . !empty($s) . "'"; ?> https://3v4l.org/J4nBb share | improve this answer | follow | ...
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Can I define a class name on paragraph using Markdown?

...er. A simple paragraph with a class attribute. {:.yourClass} Reference: https://kramdown.gettalong.org/syntax.html#inline-attribute-lists share | improve this answer | fol...
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jquery if div id has children

...kground: #9f9; } .failure { background: #f99; } <script src="https://code.jquery.com/jquery-1.12.2.min.js"></script> <div id="test"> <span>Children</span> </div> <div id="test2"> No children </div> The vanilla JS way If...
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Maven: Non-resolvable parent POM

...t; <name>internal repository</name> <url>https://my/private/repo</url> <layout>default</layout> <releases> <enabled>true</enabled> </releases> <snapshots> <ena...