hadnazzar

# Start an HTTP server from a directory, optionally specifying the port
function server() {
    local port="${1:-8000}"
    open "http://localhost:${port}/" && python -m SimpleHTTPServer "$port"
}

hadnazzar

validateEmail = (email) => {
    const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(String(email).toLowerCase());
}

hadnazzar

className={`wrapper searchDiv ${this.state.something}`}

hadnazzar

window.requestAnimationFrame(function step(timestamp) {
  if (!start) start = timestamp;
  // Elapsed milliseconds since start of scrolling.
  let time = timestamp - start;
  // Get percent of completion in range [0, 1].
  let percent = Math.min(time / duration, 1);

  window.scrollTo(0, startingY + diff * percent);

  // Proceed with animation as long as we wanted it to.

hadnazzar

 ---
 jsx
 ---

componentDidMount() {
    window.addEventListener('scroll', this.handleScroll);
  }

  componentWillUnmount() {
    window.removeEventListener('scroll', this.handleScroll);

hadnazzar

git_prompt() {
  #temp=`git symbolic-ref HEAD 2>/dev/null | cut -d / -f 3`
  temp=`git diff --shortstat | sed -e 's/insertions//' -e's/deletions//'`
  if [ "$temp" != "" ]; then
        RPROMPT='%{$fg_no_bold[green]%}git:($temp%)%{$reset_color%} %{$fg_no_bold[yellow]%}[%1~]%{$reset_color%} %t'
  else
        RPROMPT='%{$fg_no_bold[yellow]%}[%~]%{$reset_color%} %t'
  fi
}
autoload -Uz add-zsh-hook

hadnazzar

        /* Here's an example that uses (some) ES6 Javascript semantics to filter an object array by another object array. */

        // x = full dataset
        // y = filter dataset
        let x = [
            {"val": 1, "text": "a"},
            {"val": 2, "text": "b"},
            {"val": 3, "text": "c"},
            {"val": 4, "text": "d"},
            {"val": 5, "text": "e"}

hadnazzar

function add(x) {
  return function(y){
    return x + y 
  }
}

add(5)(3) // 8
add(2)(5) // 7

hadnazzar

var array1 = [1, 4, 9, 16];

// pass a function to map
const map1 = array1.map(x => x * 2);

console.log(map1);
// expected output: Array [2, 8, 18, 32]

hadnazzar

import React, {Component} from 'react';
import {Platform, StyleSheet, Text, View, FlatList, PermissionsAndroid} from 'react-native';
import Contacts from 'react-native-contacts';

type Props = {};
export default class App extends Component<Props> {
  state={
    contacts: null
  }