Javascript - portalZINE NMN - development meets creativity

GreenApe is breathing again

30. August 2017

After some downtime, GreenApe is breathing again. I revived the brand with a good friend of mine and we will be reopening shop options shortly.

Michael and I have been friends for a long time. We have been working on many different projects over the years.

He launched GreenApe in 2011 and I helped him with his first steps. A couple of months ago we decided to merge our competences and expand what GreenApe offers and stands for.

From the website: “The GreenApe brand was established in 2011. GreenApe’s career began with the 1st Single Malt Whisky Coffee.

As the first of its kind, our coffee is refined with Original Single Malt Whisky. To this day, he pampers many connoisseurs and gourmets with his unique taste. Now there is another reason to rejoice.

From now on, we are continuously expanding the GreenApe product world with several stylish gadgets and useful accessories. For you this means that you will be able to discover even more beautiful, special or practical things in the future.“

GreenApe is all about lifestyle & leisure products, fun gadgets and unique food & drinks.

Using SQLite in Javascript with sql.js

20. August 2017

Fun Fun Fun 🙂

var sql = require('sql.js');
// or sql = window.SQL if you are in a browser

// Create a database
var db = new sql.Database();
// NOTE: You can also use new sql.Database(data) where
// data is an Uint8Array representing an SQLite database file

// Execute some sql
sqlstr = "CREATE TABLE hello (a int, b char);";
sqlstr += "INSERT INTO hello VALUES (0, 'hello');"
sqlstr += "INSERT INTO hello VALUES (1, 'world');"
db.run(sqlstr); // Run the query without returning anything

var res = db.exec("SELECT * FROM hello");
/*
[
	{columns:['a','b'], values:[[0,'hello'],[1,'world']]}
]
*/

// Prepare an sql statement
var stmt = db.prepare("SELECT * FROM hello WHERE a=:aval AND b=:bval");

// Bind values to the parameters and fetch the results of the query
var result = stmt.getAsObject({':aval' : 1, ':bval' : 'world'});
console.log(result); // Will print {a:1, b:'world'}

// Bind other values
stmt.bind([0, 'hello']);
while (stmt.step()) console.log(stmt.get()); // Will print [0, 'hello']

// You can also use javascript functions inside your SQL code
// Create the js function you need
function add(a, b) {return a+b;}
// Specifies the SQL function's name, the number of it's arguments, and the js function to use
db.create_function("add_js", add);
// Run a query in which the function is used
db.run("INSERT INTO hello VALUES (add_js(7, 3), add_js('Hello ', 'world'));"); // Inserts 10 and 'Hello world'

// free the memory used by the statement
stmt.free();
// You can not use your statement anymore once it has been freed.
// But not freeing your statements causes memory leaks. You don't want that.

// Export the database to an Uint8Array containing the SQLite database file
var binaryArray = db.export();

var sql = require('sql.js');

// or sql = window.SQL if you are in a browser

// Create a database

var db = new sql.Database();

// NOTE: You can also use new sql.Database(data) where

// data is an Uint8Array representing an SQLite database file

// Execute some sql

sqlstr = "CREATE TABLE hello (a int, b char);";

sqlstr += "INSERT INTO hello VALUES (0, 'hello');"

sqlstr += "INSERT INTO hello VALUES (1, 'world');"

db.run(sqlstr); // Run the query without returning anything

var res = db.exec("SELECT * FROM hello");

[

{columns:['a','b'], values:[[0,'hello'],[1,'world']]}

]

// Prepare an sql statement

var stmt = db.prepare("SELECT * FROM hello WHERE a=:aval AND b=:bval");

// Bind values to the parameters and fetch the results of the query

var result = stmt.getAsObject({':aval' : 1, ':bval' : 'world'});

console.log(result); // Will print {a:1, b:'world'}

// Bind other values

stmt.bind([0, 'hello']);

while (stmt.step()) console.log(stmt.get()); // Will print [0, 'hello']

// You can also use javascript functions inside your SQL code

// Create the js function you need

function add(a, b) {return a+b;}

// Specifies the SQL function's name, the number of it's arguments, and the js function to use

db.create_function("add_js", add);

// Run a query in which the function is used

db.run("INSERT INTO hello VALUES (add_js(7, 3), add_js('Hello ', 'world'));"); // Inserts 10 and 'Hello world'

// free the memory used by the statement

stmt.free();

// You can not use your statement anymore once it has been freed.

// But not freeing your statements causes memory leaks. You don't want that.

// Export the database to an Uint8Array containing the SQLite database file

var binaryArray = db.export();

sql.js @ Github

Font Face Observer … gives you a font promise ;)

20. August 2017

Font Face Observer is a fast and simple web font loader. You can use it to load fonts and customise your browser’s font loading behaviour.

Font Face Observer gives you control over web font loading using a simple promise based interface. It doesn’t matter where your fonts come from: host them yourself, or use a web font service such as Google Fonts, Typekit, Fonts.com, and Webtype.

Font Face Observer @ Github

Easy leaderlines for your webpage

20. August 2017

Quickly draw a leader line in your web page.

<div id="start">start</div>
<div id="end">end</div>

1 2	<div id="start">start</div> <div id="end">end</div>

// Add new leader line from `start` to `end` (HTML/SVG elements, basically).
new LeaderLine(
  document.getElementById('start'),
  document.getElementById('end')
);

// Add new leader line from `start` to `end` (HTML/SVG elements, basically).

new LeaderLine(

document.getElementById('start'),

document.getElementById('end')

);

Leaderline @ Github

Hexagons & grids do not mix … are you sure ?

18. June 2017

CSS responsive grid of hexagons allows you to easily create just that for images and some text. Nice way to present a portfolio.

The hexagon grid is responsive according to the width of the container (#hexGrid)
Hexagons keep their aspect ratio according to their width
The number of hexagons per row is adaptive and changes from 5 to 2 on media query break points
A title and short text slide in on hexagon hover and focus
Hexagons and can be cycled through with tab (keyboard navigation)

GitHub

Export SVG Animations for the Web with Snap.SVG Animator

18. June 2017

Snap.svg Animator is an open sourced plugin for Animate CC that exports animations for the web rendered in SVG.

It uses the Snap.svg JavaScript library to dynamically draw SVG content at runtime. Snap.svg is a JavaScript library created by Dmitry Baranovskiy, who also created Raphaël.js.

A simple API allows you to write and manipulate SVG content in the browser.

Adobe Plugin / Snap.SVG

Lets fix the short comings of current CSS integrations – EQCSS / Element queries

14. May 2017

“Element queries are a new way of thinking about responsive web design where the responsive conditions apply to elements on the page instead of the width or height of the browser.
Unlike CSS @media queries, @element Queries are aware of more than just the width and height of the browser, you can write responsive conditions for a number of different situations like how many characters of text or child elements an element contains.
Another concept that element queries brings to CSS is the idea of ‘scoping’ your styles to one element in the same way that JavaScript functions define a new scope for the variables they contain.”

Element Query Conditions

Client-side JavaScript PDF generation with jsPDF

14. May 2017

A library to generate PDFs in client-side JavaScript.

// Default export is a4 paper, portrait, using milimeters for units
var doc = new jsPDF()

doc.text('Hello world!', 10, 10)
doc.save('a4.pdf')

// Landscape export, 2×4 inches
var doc = new jsPDF({
  orientation: 'landscape',
  unit: 'in',
  format: [4, 2]
})

doc.text('Hello world!', 1, 1)
doc.save('two-by-four.pdf')

// Default export is a4 paper, portrait, using milimeters for units

var doc = new jsPDF()

doc.text('Hello world!', 10, 10)

doc.save('a4.pdf')

// Landscape export, 2×4 inches

var doc = new jsPDF({

orientation: 'landscape',

unit: 'in',

format: [4, 2]

})

doc.text('Hello world!', 1, 1)

doc.save('two-by-four.pdf')

GitHub

A simple javascript database – TaffyDB

14. May 2017

Small file size, extremely fast queries
Powerful JavaScript centric data selection engine
Database inspired features such as count, update, and insert
Robust cross browser support
Easily extended with your own functions
Compatible with any DOM library (jQuery, YUI, Dojo, etc)
Compatible with Server Side JS

// Create DB and fill it with records
var friends = TAFFY([
	{"id":1,"gender":"M","first":"John","last":"Smith","city":"Seattle, WA","status":"Active"},
	{"id":2,"gender":"F","first":"Kelly","last":"Ruth","city":"Dallas, TX","status":"Active"},
	{"id":3,"gender":"M","first":"Jeff","last":"Stevenson","city":"Washington, D.C.","status":"Active"},
	{"id":4,"gender":"F","first":"Jennifer","last":"Gill","city":"Seattle, WA","status":"Active"}	
]);

// Create DB and fill it with records

var friends = TAFFY([

{"id":1,"gender":"M","first":"John","last":"Smith","city":"Seattle, WA","status":"Active"},

{"id":2,"gender":"F","first":"Kelly","last":"Ruth","city":"Dallas, TX","status":"Active"},

{"id":3,"gender":"M","first":"Jeff","last":"Stevenson","city":"Washington, D.C.","status":"Active"},

{"id":4,"gender":"F","first":"Jennifer","last":"Gill","city":"Seattle, WA","status":"Active"}

]);

// Kelly's record
var kelly = friends({id:2}).first();

// Kelly's last name
var kellyslastname = kelly.last;

// Get an array of record ids
var cities = friends().select("id");

// Get an array of distinct cities
var cities = friends().distinct("city");

// Apply a function to all the male friends
friends({gender:"M"}).each(function (r) {
   alert(r.name + "!");
});

// Kelly's record

var kelly = friends({id:2}).first();

// Kelly's last name

var kellyslastname = kelly.last;

// Get an array of record ids

var cities = friends().select("id");

// Get an array of distinct cities

var cities = friends().distinct("city");

// Apply a function to all the male friends

friends({gender:"M"}).each(function (r) {

alert(r.name + "!");

});

TaffyDB / GitHub

Browse tree-like data in columns, similar to OS X’s file manager – FinderJS

5. April 2017

Data source: Array or Function (useful for asynchronous operations, e.g. calling an API).
Styling: Use any CSS/framework of choice (Flexbox). You can also define how items are rendered and change default classnames.
Keyboard navigation: use arrows keys to navigate.
Events: several events are emitted to allow for custom behavior.
Module formats: Provided as an npm module (CommonJS), a jQuery plugin, and exported as the global finder.

FinderJS

Element Query Conditions

Width-based Conditions

Height-based Conditions

Count-based Conditions

Scroll-based Conditions

Aspect-based Conditions

Meta-Selectors