easy-coding

This package contains utilities written in the TypeScript language. They help you to write your code faster as they are functionalities that commonly take some time from programmers to create.

Installation

npm i easy-coding

Usage

Functions

createElement(tag, options)

Creates a new element with custom options and returns it.

Usage:

const myImage = createElement('img', {
  id: 'my-image',
  classes: ['cover'],
  style: {
    width: '340px',
    height: '160px'
  },
  attributes: [['src', '/path/to/img.png']],
  listeners: [['click', e => doSomething(e)]],
  childOf: document.querySelector('.my-images')
});

handleBindingAttr(attr, callback)

Gets all DOM elements with the specified attribute and runs a callback function for each one, passing the element and its attribute value as arguments.

Example:

<div clickAndGo="/some-route">Click me</div>
<img clickAndGo="/another-route" src="path/to/img" alt="Some image">

handleBindingAttr('clickAndGo', (element, value) =>
  element.addEventListener('click', () => window.location.href = value)
);

Once the function is called it starts listening to template changes, that is, you can add new elements anytime and the proper callback for them and their attributes will run.

makeGlobal(key, value)

Adds a new property to the window object.

addGlobalEntries(set)

Adds the properties of set to the window object.

ruleOfThree(a, b, c)

Returns x where a is equivalent to b and c is equivalent to x.

Example:

a --- b
c --- x

Let's say you want to turn mililiters to litters:

1000ml --- 1L
10000ml --- ?

The code:

const x = ruleOfThree(1000, 1, 10000); // 10

getRandomValueFrom(arr)

Returns a random index value from arr.

randomNumberBetween(min, max)

Returns a random number between minand max.

randomDateBetween(date1, date2)

Returns a random date between two other dates.

removeSpecialChars(str)

Returns str without special chars.

Decorators

Global

Decorator function that adds the given class to globalThis.

@Global
class SomeType { }

It is helpful when you are wrapping the class inside a function (like when exporting a module to a version supported by browsers) and want to make it available from anywhere.

Classes

Cookie

Basic handler for reading and setting cookies.

Methods:

• get(name): Returns cookie value
• set(name, value, exdays): Sets a cookie