JSTutorial/arrow.js at master · letssayx/JSTutorial · GitHub

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// const sayHello = function(name){
//     return "Hey hi!, " + name + " Howdy?"
// }

// console.log(sayHello('vishal'))

// const sayHello = (name) => `hey hi!, ${name} Howdy?`

// console.log(sayHello('vishal'))

// const todos = [
//     {title: 'buy bread',isDone: true},
//     {title: 'Go to Gym', isDone: true},
//     {title: 'Record youtube videos', isDone: false}
// ]

// const thingsDone = todos.filter((element) => element.isDone === true)
// console.log(thingsDone)


// const thingsDone = todos.filter((element) => element.isDone === true).map(returnedValue => returnedValue.title)
// console.log(thingsDone.title)

// const camera = {
//     price: 600,
//     brand: 'sony',
//     descrip: function(){
//     return `My camera brand ${this.brand} price ${this.price}$`
//     }
// }

// console.log(camera.descrip());

//JS consider this as false
//false
// 0
// "" empty string
// null
// undefined
// Note {} & [] are true

//also note - is minus but + is concatenation
// console.log('5'-5); >> 0
// console.log('5'+5); >> 55
// use typeof function to confirm the type