...open a dialog with the route to your dialog's view. tinymce.init({ // ... toolbar: 'myCustomButton', setup: function(editor) { editor.ui.registry.addButton('myCustom Button', { icon: 'document-properties', tooltip: 'Further describe your button here', onAction...

...insertContent', content: linkTag, }); window.parent.postMessage({ mceAction: 'insertContent', content: ' ', }) window.parent.postMessage({ mceAction: 'close' }); }) function buildLinkTag(form) { // do stuff } }) See here for more commands...

If you are using scrum in a project you might be familiar with planning poker, a playful way to agree on story estimates. PoinZ is an online planning poker app...

Note: Making a reverse proxy with nginx is much more straightforward. A reverse proxy is a "man in the middle" server that tunnels requests to another server. You can use...

...makes sure that it can fetch from HTTPS internally. You've basically built your custom SSL-stripping MITM attack server. If your proxy server should be accessible over HTTPS, use...

When your JavaScript bundle is so massive that you cannot load it all up front, I would recommend to load...

A print stylesheet is easy to create. Choose a font suited for paper, hide some elements, done. Unfortunately print stylesheets often break as the application is developed further, because they...

...are quickly forgotten and nobody bothers to check if their change breaks the print stylesheet. This card describes how to write a simple Cucumber feature that tests some aspects of...

The need for clearfix hacks has been greatly reduced since we could layout with Flexbox or CSS Grid. However, when you do need a clearfix, there's no reason to...

...hack anymore. You can just give the clearing container display: flow-root. This is supported by all browsers except IE11...

This is how you regain disk space from OpenStack instances if you are using kvm and qcow. If your instance used up all configured disk space once the disk file...

...remains big. You can end up in a situation where for example the instance use only 20GB disk space but the disk file on the server has 100GB (or even...

Sometimes, the rails dev server doesn't terminate properly. This can for example happen when the dev server runs in a RubyMine terminal. When this happens, the old dev server...

...blocks port 3000, so when you try to start a new server, you get the error: Address already in use - bind(2) for "127.0.0.1" port 3000 (Errno::EADDRINUSE)

...of control”. A function that accepts a callback instead of a return value is saying, “Don’t call me, I’ll call you.”. Promises un-invert the inversion, cleanly separating...

...the input arguments from control flow arguments. This simplifies the use and creation of APIs, particularly variadic, REST and spread arguments. Note that promises are not a drop-in replacement...

RubyMine offers you to exclude directories from search, meaning faster search results and less "noise" in the list of result. Right-click a folder in your project tree and click...

...and other directories that you don't need to access during development and whose search results are irrelevant. They won't be deleted but simply ignored when searching across a...

Capistrano 2 brings the shell command which allows you to run commands on your deployment targets. There is also invoke to run a command directly from your terminal.

...allow running Capistrano tasks or shell commands, and scope to individual machines or machine roles. Unfortunately Capistrano 3 does not include these commands any more. cap shell Basics

...your HTTP request with curl, you can use the -w (--write-out) option: curl --silent -o /dev/null -w "%{time_connect};%{time_starttransfer};%{time_total};%{time_appconnect};%{time_pretransfer}\n...

...With -w you can make curl display informations for your HTTP request. As seen in the example above you can e.g. output this in a CSV format for further analysis...

It's not possible to change the bwlimit of Proxmox storages via the Web-UI (at least in Proxmox 7.x). To change the bwlimit you need to use the...

...pvesm command and specify the limit for the desired category. For example to increase the bwlimit for migrations: pvesm set $NAME_OF_STORAGE --bwlimit migration=$INTEGER_LIMIT # example

...filled out at the same time, there is no built-in validation. I've seen different solutions in the wild, each with different downsides: Private method referenced via validate: works...

...name, :nickname, xor_presence: true end Validator Here is the validator class; put it somewhere in your project. class XorPresenceValidator < ActiveModel::Validator def initialize(options) @attributes = Array.wrap(options[:attributes]).freeze...

...have multiple exported resources that are identical. There are nodes that provide the same services for failover reasons. It is likely to have duplicate resources, when exporting nagios_check from...

...everything is fine. But when it comes to realizing the resources on the monitoring server, the puppetrun will fail due to the duplicate addresses. So how to mitigate this issue...

We have released Modularity 2. It has many incompatible changes. See below for a script to migrate your applications automatically. There is no does method anymore We now use traits...

The script will rename your files and change your code. It will also syntax-check your files after conversion (since the script is not perfect). Check the diff...

You can use three different versions of the regular expression syntax in grep: basic: -G extended: -E(POSIX) perl: -P (PCRE) Difference between basic and extended: In basic regular expressions...

...the meta-characters '?', '+', '{', '|', '(', and ')' loose their special meaning; instead use the backslashed versions '?', '+', '{', '|', '(', and ')'. Difference between extended (POSIX) and perl (PCRE): E.g. \d is not supported in POSIX.

If you want to to create maps within SASS/SCSS-files, it normally works like this: $some-map: (key1: value1, key2: value2) However, some maps can get big really fast, if they...

...since 2011 and it hasn't been resolved since then. Writing a map likes this: $some-map: ( key1: value1, key2: value2 ) confuses the SASS-parser and you will get an...

...Linux and MacOS, they look horrible on Windows, a problem that gets worse with smaller font sizes. The culprit is something called font hinting: ... hinting is about... programming instructions that...

...hinting, causing horrible rendering for most fonts. Embedding autohinting information into font files A solution is to autohint fonts and replace the existing (bad) hinting with the autohinting information.

You may want this for things where Rationals are being used, like when subtracting Date objects from one another. What's happening? Converting a Rational to a String usually...

...does something like this: 1.8.7 > Rational(2, 3).to_s => "2/3" 1.9.3 > Rational(2, 3).to_s => "2/3" 2.0.0 > Rational(2, 3).to_s => "2/3" However, when you have a...

...Content-Type on GET request (which have a blank body), an external API may still force you to send one. Angular's $http service will strip that header when the...

...is blank. [1] This is possibly a misconception of RFC2616. Here is how to send GET requests with a Content-Type header in Angular. Example Consider this request: $http({ method...

A fantastic guide for a dilemma facing any web-based product. Here’s a simple set of Yes/No questions that you can quickly answer before you add another item to...

...your product roadmap. Saying yes to a feature request – whether it’s a to an existing customer, a product enquiry, a teammate, or a manager – is immediately rewarding. It’s...

Soon after having written our shell-for script, we wanted to easily get dumps of our productions machines, too. This is how we do it: dump-for staging [-s]

...dump to your project's tmp directory and name it according to the capistrano stage you're calling for, here: staging.dump. When you pass the optional -s option, the dump...