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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <meta charset="UTF-8" />
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+ <meta http-equiv="X-UA-Compatible" content="IE=edge" />
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0" />
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+ <title>Document</title>
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+ </head>
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+ <body>
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+ <script>
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+
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+ //ASSIGN: EVALUATION
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+
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+
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+ // var a = (5);
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+ // var b, c;
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+
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+ // b = ((a) * (5));
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+ // b = ((c) = ((b)/(2)));
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+
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+
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+ // 1- (5); 2 - ((a) * (5)); 3 - ((b)/(2)); 4- (c)
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+
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+
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+
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+ //SEMICOLON: ERROR
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+
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+
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+ // for(let i = 0 i<10; i++)
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+ // let i let b
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+
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+
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+ //SEMICOLON: MISTAKE
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+
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+
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+
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+ //NUMBER: AGE
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+
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+ // let age = +prompt("how old are you?")
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+
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+ // if(age){
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+ // if (age>0){
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+ // alert(age)
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+ // }
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+ // else{
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+ // alert("error")
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+ // }
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+ // }
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+
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+ //NUMBER: TEMPERATURE
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+
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+ // let temp = +prompt("Enter temperature to convert")
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+ // let celsius = confirm("Іs the temperature in celsius degrees?")
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+
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+ // if(temp){
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+ // if (celsius){
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+ // alert((( temp * (9/5)) + 32).toFixed(1))
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+ // }else{
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+ // alert(((temp - 32) * (5/9)).toFixed(1) )
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+ // }
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+
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+ // }
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+
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+
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+
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+
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+
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+
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+ //NUMBER: DIVIDE
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+
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+
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+ // let num1 = +prompt("Enter dividend (default: 0)",0)
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+ // let num2 = +prompt("Enter divider")
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+
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+
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+ // if(!num1 || !num2){
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+ // alert("error")
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+ // }else{
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+ // alert(Math.floor(num1/num2))
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+
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+ // }
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+
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+
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+
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+
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+
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+ //NUMBER: ODD
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+
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+ // let num = +prompt("Enter the number")
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+
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+ // if(num){
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+ // if(num %2 == 0){
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+ // alert("number is even")
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+ // }else{
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+ // alert("number is odd")
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+ // }
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+ // }else{
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+ // alert("error: incorrect number")
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+ // }
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+
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+
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+ //STRING: GREETING
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+
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+ // let name = prompt("Enter ur name")
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+
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+ // if(name){
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+ // alert("Hello " + name)
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+ // }else{
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+ // alert("error")
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+ // }
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+
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+
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+
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+ //STRING: LEXICS
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+
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+ // let incorrectText = "frontend is markup"
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+
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+ // let text = prompt("Enter text")
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+
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+ // if(text){
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+ // text = text.toLowerCase()
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+ // text.includes(incorrectText)?alert(true):alert(false)
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+ // }else{
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+ // alert("error")
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+ // }
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+
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+
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+
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+
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+ //CONFIRM
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+
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+
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+ // let conf = confirm()
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+
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+ // //on "Yes"
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+
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+ // console.log(typeof conf)//boolean
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+ // console.log(conf)//true
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+
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+ // // on "No"
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+
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+ // console.log(typeof conf)//boolean
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+ // console.log(conf)//false
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+
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+
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+
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+ //BOOLEAN
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+
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+ // let isStudent = confirm("Are you student?")
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+ // let isBachelor = confirm("Do you have bachelor degree?")
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+ // let isMaster = confirm("Do you have master degree?")
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+
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+
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+
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+
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+ //BOOLEAN: IF
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+
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+
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+ // let isStudent,isBachelor,isMaster
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+ // isStudent = confirm("Are you student?")
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+
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+ // if(isStudent){
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+ // isBachelor = confirm("Do you have bachelor degree?")
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+ // }else{
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+ // isBachelor = confirm("Do you have bachelor degree?")
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+
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+ // if(isBachelor){
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+ // isMaster = confirm("Do you have master degree?")
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+ // }
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+ // }
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+
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+
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+ //ARRAY: REAL
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+
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+ //let myBackpack = ["laptop","laptop charger","mouse","pen","notebook","0.5 water"]
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+
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+
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+ //ARRAY: BOOLEANS
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+
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+ // let isStudent = false
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+ // let isBachelor = false
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+ // let isMaster = false
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+
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+
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+ // isStudent = confirm("Are you student?")
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+
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+ // if(isStudent){
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+ // isBachelor = confirm("Do you have bachelor degree?")
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+ // }else{
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+ // isBachelor = confirm("Do you have bachelor degree?")
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+
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+ // if(isBachelor){
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+ // isMaster = confirm("Do you have master degree?")
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+ // }
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+ // }
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+
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+
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+ // let boolArray = [isStudent,isBachelor,isMaster]
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+
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+ //ARRAY: PLUS
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+
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+
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+ // let arr = [5,2]
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+
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+ // arr[2] = arr.reduce((prev,curr)=>prev+curr)
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+
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+ // console.log(arr)
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+
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+
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+ //ARRAY: PLUS STRING
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+
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+
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+ // let arr = ["Hello ","World","!"]
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+
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+ // arr[3] = arr.reduce((prev,curr)=>prev+curr)
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+
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+ // console.log(arr)
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+
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+
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+ //OBJECT: REAL
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+
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+ // let mouse = {
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+ // color:"black",
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+ // buttons:3,
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+ // sizeX:5,
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+ // sizeY:10,
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+ // sizeZ:3.2
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+ // }
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+
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+
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+ //OBJECT: CHANGE
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+
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+
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+
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+ // let mouse = {
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+ // color:"black",
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+ // buttons:3,
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+ // sizeX:5,
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+ // sizeY:10,
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+ // sizeZ:3.2
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+ // }
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+
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+
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+ // mouse.color = "white"
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+ // mouse["buttons"]=2
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+ // console.log(mouse)
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+
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+
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+
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+
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+
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+ //COMPARISON IF
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+
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+
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+ // var age = +prompt("Сколько вам лет?","");
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+
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+ // if(age<=0){
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+ // alert("error: age cannot be smaller or equel 0")
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+ // }else{
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+ // if (age < 18){
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+ // alert("школьник");
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+ // }
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+ // else{
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+ // if ( age < 30){
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+ // alert("молодеж");
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+ // }
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+ // else {
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+ // if (age < 45){
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+ // alert("зрелость");
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+ // }
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+ // else{
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+ // if ( age <= 60){
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+ // alert("закат");
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+ // }
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+ // else {
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+ // if (age > 60){
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+ // alert("как пенсия?");
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+ // }
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+ // else {
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+ // alert("то ли киборг, то ли ошибка");
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+ // }
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+ // }
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+ // }
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+ // }
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+ // }
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+ // }
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+
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+
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+ //COMPARISON: SIZES
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+
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+ // let size = prompt("enter size to covert (Russia => USA )")
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+
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+ // if(size>=40 && size <=54){
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+ // if(size>= 40 && size<42){
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+ // alert("S")
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+ // }
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+ // if(size>= 42 && size<=44){
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+ // alert("M")
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+ // }
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+ // if(size>= 46 && size<=48){
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+ // alert("L")
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+ // }
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+ // if(size>= 50 && size<=52){
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+ // alert("XL")
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+ // }
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+ // if(size === 54){
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+ // alert("XXL")
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+ // }
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+ // }else {
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+ // alert("error:incorrect size")
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+ // }
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+
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+
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+ //COMPARISON: OBJECT
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+
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+ // let covertRussiaToUSA = {
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+ // 40:"S",
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+ // 42:"M",
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+ // 44:"M",
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+ // 46:"L",
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+ // 48:"L",
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+ // 50:"XL",
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+ // 52:"XL",
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+ // 54:"XXL",
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+ // }
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+
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+ // let size = prompt("enter size to covert (Russia => USA )")
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+
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+ // if(size>=40 && size <=54 && size%2 ===0){
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+ // alert(covertRussiaToUSA[size])
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+ // }else {
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+ // alert("error:incorrect size")
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+ // }
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+
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+
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+ //TERNARY
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+ //confirm("Are you male?")?alert("you are male"):alert("you are female")
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+
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+
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+ //СИНИЙ ПОЯС NUMBER: FLATS
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+
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+
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+
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+ // while(true){
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+ // let floors = +prompt("Enter amount of floors")
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+ // let flatsPerFloor = +prompt("Enter amount of flats per floor")
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+ // let num = +prompt("Enter anumber of flat")
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+
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+ // if(!floors || floors<=0){
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+ // alert('error:incorrect floors')
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+ // continue
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+ // }
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+
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+ // if(!flatsPerFloor || flatsPerFloor<=0){
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+ // alert('error:incorrect flats per floor')
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+ // continue
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+ // }
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+
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+ // if(!num || num<=0){
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+ // alert('error:incorrect num')
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+ // continue
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+ // }
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+
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+ // let enter = Math.ceil(num/(floors*flatsPerFloor))
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+ // let floor = Math.ceil((num-((enter-1)*(floors*flatsPerFloor)))/flatsPerFloor )
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+
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+ // alert(`этаж:${floor} подъезд: ${enter}`)
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+ // break;
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+ // }
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+
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+
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+
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+ </script>
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+ </body>
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+</html>
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ilya_shyian