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loadFlashCards = async () => {
	const value = await AsyncStorage.getItem('flashcards');
	if (value !== null){
		this.setState({
			flashcards: JSON.parse(value)
		});
	}
}

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this.setState((state)=> (
	showInput: !state.showInput
))
{showInput && (
   <View …>
)
}

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var twoSum = function(nums, target) {
    const hash = {};

    for (let i = 0; i < nums.length; i++) {
        const comp = target - nums[i];

        if (hash[comp] !== undefined) {
            return [hash[comp], i];
        }

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myList.sort(function(x, y){
    return x.timestamp - y.timestamp;
})

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/* Create A Reducer
 *
 * You need to create a reducer called "appReducer" that accepts two arguments:
 * - First, an array containing information about ice cream 
 * - Second, an object with a 'DELETE_FLAVOR' `type` key
 * (i.e., the object contains information to delete the flavor from the state)
 *
 * The action your reducer will receive will look like this:
 * { type: 'DELETE_FLAVOR', flavor: 'Vanilla' }
 *

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for (const day of days) {
  console.log(day.charAt(0).toUpperCase().trim().concat(day.slice(1)));
}

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function person (name) {
  return function age (age) {
    return `${name} is ${age}`
  }
}

// if we called
const arg1 = 'Richard'
const arg2 = 30
console.log(person(arg1)(arg2))

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const isLargerOrEqualTo100 = (a) => {
  return new Promise((resolve, reject) => {
    if (a >= 100) {
      resolve(`${a} is >= 100`)
    } else {
      reject(`${a} is < 100`)
    }
  })
}

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/*
* ** Diffrence between Tasks and Promises:
* Once settled, a promise can not be resettled. Calling resolve() or reject() again will have no effect. The immutability of a settled promise is an important feature.
* https://medium.com/javascript-scene/master-the-javascript-interview-what-is-a-promise-27fc71e77261
* *** First arg is for 'resolved' status, and the second is for 'rejected'
*/

// exampe 1
const myPromise = function () {
  return new Promise((Yay, Nay) => {

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class Person {
  constructor(name = 'Anonymous', age = 0) {
    this.name = name
    this.age = age
  }
  getGreeting(){
    return `Hi, I am ${this.name}`
  }
  getDescription(){
    return `${this.name} is ${this.age} years old`