Mapping Caps Lock to Alfred

February 7, 2019 — Leave a comment

Software you need

In order to do this, I turned off the Caps Lock button by going to System Preferences -> Keyboard -> Modifier Keys… -> Caps Lock Key to No Action.

I opened Karabiner-Elements and changed my Caps Lock button to the f19 key under Simple Modifications.

I opened Alfred, clicked on keyboard shortcut, and press Caps Lock.
I mapped the Alfred clipboard to CapsLock + Spacebar, so I can have a clipboard manager that’s easy to open.

You should be all set.

P.S. You can also use this trick to open any other software for the Mac OSX.

In post

Sequelize string deprecation warning

November 9, 2018 — Leave a comment

Sequelize was giving me the following error even without any string based operators.

sequelize deprecated String based operators are now deprecated. 
Please use Symbol based operators for better security, read more at 
http://docs.sequelizejs.com/manual/tutorial/querying.html#operators node_modules/sequelize/lib/sequelize.js:236:13

The warning is displayed if you don’t set operatorsAliases, and it absolutely should be displayed if operatorsAliases is not set to some mapping or is set to false.
You can set operatorAliases to false or import Sequelize OP into the Sequelize instantiation.

const Op = Sequelize.Op;
const sequelize = new Sequelize('test', 'test', 'pass1234', {
  host: '127.0.0.1',
  dialect: 'mysql',
  operatorsAliases: Op, // use Sequelize.Op
  pool: {
    max: 5,
    min: 0,
    idle: 10000
  },
})

In post javascript, orm, sequelize

Apple Watch Exercise Pausing While Locked

November 8, 2018 — Leave a comment

My Apple Watch would pause in the middle of running and working out, even when I had locked it.

Pressing the crown and the side button while in a locked state will pause exercise mode.
The only way to fix this problem is by putting the watch higher on your wrist and fitting it tighter.

apple watch fitment

In post apple, watch

Emmet JSX autocompletion in Atom

April 28, 2016 — Leave a comment

I was getting annoyed that my Emmet shortcuts were not working in Atom when I’m writing React/JSX files. None of the Emmet shorthands were expanding, until I found this bit of information.

Making Emmet shortcuts work for JSX files in Atom

Open Atom menu -> Keymap…
Add this line to the keymap file
atom-text-editor[data-grammar=”source js jsx”]:not([mini])’: ‘tab’: ’emmet:expand-abbreviation-with-tab

This will expand .col-sm-8 to

<div className="col-sm-8"></div>

In post emmet, javascript, jsx, reactjs

Disable Desktop Switching in Mac OSX

April 7, 2016 — 2 Comments

Backstory

On Mac OSX, it would annoy me whenever I wanted to open a new Chrome browser on a 2nd workspace, and it would autoswitch to the first instance on the 1st workspace. We can disable it by desktop spaces auto-switching by entering a terminal command.

How to Disable Desktop Autoswitching

Open terminal and enter this command:

defaults write com.apple.dock workspaces-auto-swoosh -bool NO

Then restart the Dock by entering this command in terminal:

killall Dock

Enable Desktop Autoswitching

Open terminal and enter these two commands:

 defaults write com.apple.dock workspaces-auto-swoosh -bool YES
 killall Dock

In post osx, tips

Get Scale Value of CSS Transformation through Javascript

April 5, 2016 — Leave a comment

Scale Value with Javascript

I was looking for a quick and easy way to get a scale value of a css -webkit-transform with javascript.

The html and css:

<div id="transformed"></div>

#transform {
    -webkit-transform: scale(.8);
}

First, we need to get the property value of -webkit-transform. I’ll use jQuery.

var div = $('#transform').css('transform');

The transform property will return matrix(0.8, 0, 0, 0.8, 0, 0).

To get the scale from the matrix, we will need to turn the matrix into individual values, then we can do math:
var values = div.split(‘(‘)[1];
values = values.split(‘)’)[0];
values = values.split(‘,’);

var a = values[0];
var b = values[1];

var scale = Math.sqrt(a*a + b*b);
console.log(scale) // .80

In post javascript, jQuery

Atom Reaches 1M Users

March 28, 2016 — Leave a comment

I switched over to Atom from Sublime Text a couple of months ago.
I couldn’t be happier.
Lots of Sublime Text packages are built in, so no need to look for extra packages.
Atom has its own package manager which is easy to use.
Give Atom a try if you are a Sublime user.

Atom Reaches 1M Active Users

In post personal development

Using Javascript to Detect OS

March 24, 2016 — Leave a comment

Detect OSX or Windows with Javascript

We can easily detect whether client’s machine is PC or Mac with Javascript.
We can just analyze the value of navigator.appVersion or navigator.userAgent. Be careful, some clients will spoof the userAgent.

// Javascript code for OSX or Windows detection
var OSName="Unknown OS";
if (navigator.appVersion.indexOf("Win")!=-1) OSName="Windows";
if (navigator.appVersion.indexOf("Mac")!=-1) OSName="MacOS";

document.write('Your OS: '+OSName);

In post javascript

Regex Pattern for Passwords

March 18, 2016 — Leave a comment

Regex Password Validation

I needed to find a regex pattern for validating a password for an Angular app.
The requirement were to have at least 1 lowercase character, 1 uppercase character, 1 number, and no repeating character more than 2. For the ng-pattern, I came up with is below

/^(?!.*([A-Za-z0-9])\1{2})(?=.*[a-z])(?=.*[A-Z])(?=.*\d).+$/

Breaking It Down

(?!.*([A-Za-z0-9])\1{2}) Make sure that no characters repeat more than twice

(?=.*[a-z]) requires at least one lowercase

(?=.*[A-Z]) requires at least one uppercase

(?=.*\d) requires at least one digit

In post javascript, python, regex, snippet

John Carmack on Idea Generation

March 10, 2016 — Leave a comment

Idea Generation

It’s easier to filter the million ideas in your head when you have an idea system. Most ideas that we work on are actually fragile, where we get discouraged when we start working on it. John Carmack believes in an antifragile idea system which is outlined below.

You are working on a problem and you get an idea and with it the initial idea high

You should instantly try to defeat your idea – think of all the ways it could not work, test it out, put it under stress

If the idea survive the brutal scrutiny then it has legs for further investigations or implementation

If the idea is implemented and it works then that’s great

If the idea fails the scrutiny or implementation you can quickly move on to the next idea without feeling the lows because you haven’t obsessed or talked about it i.e. it’s not your pet idea.

From Amjad Masad

In post brief