GerardKetuma

#! /usr/bin/env node

const fs = require('fs');
const slugify = require('slug');
const inquirer = require('inquirer');
const open = require('open');
const pkgDir = require('pkg-dir');

inquirer.registerPrompt('datetime', require('inquirer-datepicker-prompt'));

GerardKetuma

// See blog post at https://ketuma.com/lessons/typescript-generics

// Generics

GerardKetuma

// See blog post at https://ketuma.com/lessons/typescript-functions

// Functions
// Fully Typed Function
const multiply: (str: string, num: number) => string = function(str: string, num: number): string {
  return `${str} `.repeat(num).trim()
}

console.log(multiply('Jake', 3)) // Jake Jake Jake

GerardKetuma

// See blog post at https://ketuma.com/lessons/typescript-classes

//Classes
interface IMatrix {
  width: number
  height: number
  content: string[]
  dimensions: string
  getElement(x: number, y: number): string
  setElement(x: number, y: number, value: string): void

GerardKetuma

// See blog post at https://ketuma.com/lessons/typescript-interfaces

//Interfaces

interface Account {
  name: string
  amount: number
  accountNumber: string
}

GerardKetuma

// See blog post at https://ketuma.com/lessons/typescript-basic-types

//Boolean
const isOdd: boolean = true
const isEven: boolean = false

//Number
const fibonacci: number = 34 //decimal
const color: number = 0xbada55 //hexadecimal
const adder: number = 0b1011 //binary

GerardKetuma

@function em($target, $context: $base-font-size) {
   @if $target == 0 { @return 0 }
   @return $target / $context + 0em;
}

$base-font-size: 15px;

h1 {
	font-size: em(21px, 15px); // Outputs 1.4em
}